Journal articles: 'Dye-sensitized Solar Cells (DSSCs)'

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Jang, Yu Jeong, Suresh Thogiti, Kang-yong Lee, and Jae Hong Kim. "Long-Term Stable Solid-State Dye-Sensitized Solar Cells Assembled with Solid-State Polymerized Hole-Transporting Material." Crystals 9, no. 9 (August 30, 2019): 452. http://dx.doi.org/10.3390/cryst9090452.

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The long-term stability of liquid-state dye-sensitized solar cells (liquid-DSSCs) is a primary problem for the upscaling and commercialization of this technology. The solid-state dye-sensitized solar cell (ss-DSSC) has been instigated to overcome the liquid-DSSC’s inherent production and instability issues and advancement has been made to achieve low-cost high-power conversion efficiency. The photovoltaic performance of ruthenium-based complex Z907 dye was studied in ss-DSSCs using a solid-state polymerized conductive polymer as hole-transporting material (HTM). We investigated the long-term stability of both liquid and solid-state DSSCs and the findings revealed an improved photovoltaic performance and long-term stability of ss-DSSC. This mainly depends on the transport phenomena of the HTM throughout the interface. The present results show a pavement for manufacturing highly stable and inexpensive ss-DSSC and the practical use is promising.

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Thomas, Ankit Stephen. "High-Efficiency Dye-Sensitized Solar Cells: A Comprehensive Review." Computational And Experimental Research In Materials And Renewable Energy 5, no. 1 (May 31, 2022): 1. http://dx.doi.org/10.19184/cerimre.v5i1.31475.

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Keeping in mind our community's dependency on non-renewable sources of energy, it is a gravitating issue that seeks our attention and requires us to switch to renewable sources of energy at the earliest. A Dye-Sensitized Solar Cell (DSSC) is a third-generation photovoltaic technology that has immense capability to become highly commercial in a few years. Along the same lines, it is necessary to highlight that current DSSCs have shallow lifetime values, stability and performance. The efficiency of current DSSCs and the need to tackle their choice of materials and long-term stability is a concern. Some of the highest recorded efficiency values are around 12%, and this calls for severe replacement of conventional DSSC materials, modifications in the device structure and molecules, and improvement in testing and scaling-up measures. This review article underlines an introduction to DSSCs, working principle, components, high-efficiency DSSCs, strategies to improve device performance, DSSCs research in India, the advantages and disadvantages of the device, and recent research on fruit and flower-based DSSCs. Keywords: Dye-Sensitized Solar Cells, Solar Cell Materials, Third Generation Photovoltaics, High-Efficiency Dye-Sensitized Solar Cells, Solar Cells.

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M.Z., Najihah, and Winie Tan. "Dye extracted from Costus woodsonii leave as a natural sensitizer for dye-sensitized solar cell." Science Letters 15, no. 1 (January 3, 2021): 58. http://dx.doi.org/10.24191/sl.v15i1.11794.

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Current work employs dye extracted from leaves of Costus woodsonii as a new sensitizer for dye-sensitized solar cells (DSSCs). The leave was extracted in three different solvents namely ethanol, methanol, and acetone. Extraction of leaves was carried out by the freezing method. DSSCs with the configuration of TiO2/dye/electrolyte/Pt were assembled. The dyes in DSSCs were Costus woodsonii leaves extracted in methanol, ethanol, and acetone. DSSC with methanol extract of leaves has an efficiency of 0.23 % and short-circuit current density (Jsc) of 0.63 mA cm-2. DSSC sensitized with ethanol extract of leaves has an efficiency of 0.37 % and Jsc of 0.85 mA cm-2. DSSC sensitized with acetone extract of leaves shows the highest efficiency of 0.48 % and Jsc of 1.35 mA cm-2. The performance of the DSSCs in this work is compared with other natural dye-based DSSCs. The efficiency obtained in this work is better or at par with the works reported by other researchers. Keywords: Natural dye; Costus woodsonii; Leave; Dye-sensitized solar cells

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Lee, Kyoung-Jun, Jeong-Hoon Kim, Ho-Sung Kim, Dongsul Shin, Dong-Wook Yoo, and Hee-Je Kim. "A Study on a Solar Simulator for Dye Sensitized Solar Cells." International Journal of Photoenergy 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/834347.

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Dye-sensitized solar cells (DSSC) are emerging low-cost, simple alternatives to conventional solar cells. While there has been considerable study on improving the efficiency of DSSCs, there has not been sufficient research on a photovoltaic power conditioning system adaptable to DSSCs or on a solar simulator for DSSCs. When DSSCs are commercialized in the near future, the DSSC modules must be connected to an adaptable power conditioning system in order to manage the energy produced and provide a suitable interface to the load. In the process of developing a power conditioning system, a solar simulator with the characteristics of DSSCs is essential to show the performance of the maximum power point tracking. In this paper, a virtual DSSC is designed and simulated in PSIM. Irradiation factors, temperature and shadow effects are considered in dynamic link library block in PSIM which is linked to the external C routine. A 100 W converter is built to show the performance of a DSSC as the solar simulator controlled by a digital signal processor.

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Karki, Indra B., Jeevan J. Nakarmi, Pradeep K. Mandal, and Suman Chatterjee. "Dye-sensitized solar cells sensitized with natural dye extracted from Indian Jamun." BIBECHANA 11 (May 8, 2014): 34–39. http://dx.doi.org/10.3126/bibechana.v11i0.10377.

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Dye sensitized solar cell (DSSC) is a device which absorbs light from the sun with a layer of dye molecules and directly converts into electric energy. DSSCs based on ZnO have drawn attention worldwide due to their low cost and easy preparation techniques compared to conventional silicon based photovoltaic devices. Silicon based solar cells were the most popular before the emerging of dye-sensitized solar cells. These silicon based solar cells devices have dominated photovoltaic industry until now. The objectives of this study is to make DSSC using ZnO on ITO coated glass substrate as anode and characterize the DSSC properties such as conversion efficiency, short current density, open circuit voltage, and fill factor. ZnO thin films have been prepared on Indium tin oxide (ITO) glass substrate. These films were used to construct ITO/ZnO/Natural Dye/C/ITO, DSSCs with natural anthocyanin sensitizer extracted from wild Jamun fruits. The cells show open circuit voltage (Voc) of 0.58V, short-circuit current (I sc) of 1.66 mA and 0.58 fill factor (FF) with an conversion efficiency (η) of 1.23%. DOI: http://dx.doi.org/10.3126/bibechana.v11i0.10377 BIBECHANA 11(1) (2014) 34-39

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Chen, Mengdan. "Development of dye sensitized solar cells." E3S Web of Conferences 261 (2021): 01046. http://dx.doi.org/10.1051/e3sconf/202126101046.

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With the development of society, the demand for energy is increasing significantly, and the environmental problems are becoming more and more serious. Therefore, it is urgent to find efficient and clean new energy. Among the many new energy sources, solar energy has been favoured most for its universality, harmlessness and low cost. In 1991, the photoelectric conversion efficiency of dye-sensitized solar cells (DSSCs) has been greatly improved, which has attracted the attention. In recent 30 years, the researches on DSSCs have been increasing and expanding. Dye sensitizer is the most important component of DSSC, and also a key issue of researchers. This paper aims to summarize the types, structures and development trends of dye sensitizers, and provide inspiration for us to design and evaluate new dye sensitizers.

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Kohn, Sophia, Daria Wehlage, Irén Juhász Junger, and Andrea Ehrmann. "Electrospinning a Dye-Sensitized Solar Cell." Catalysts 9, no. 12 (November 21, 2019): 975. http://dx.doi.org/10.3390/catal9120975.

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Dye-sensitized solar cells (DSSCs) offer new possibilities to harvest solar energy by using non-toxic inexpensive materials. Since they can generally be produced on flexible substrates, several research groups investigated possibilities to integrate DSSCs in textile fabrics, either by coating full fabrics with the DSSC layer structure or by producing fiber-shaped DSSCs which were afterwards integrated into a textile fabric. Here we show a new approach, electrospinning all solid layers of the DSSC. We report on electrospinning the counter electrode with a graphite catalyst followed by a thin nonconductive barrier layer and preparing the front electrode by electrospinning semiconducting TiO2 from a polymer solution dyed with natural dyes. Both electrodes were coated with a conductive polymer before the system was finally filled with a fluid electrolyte. While the efficiency is lower than for glass-based cells, possible problems such as short-circuits—which often occur in fiber-based DSSCs—did not occur in this proof-of-concept. Since graphite particles did not fully cover the counter electrode in this first study, and the typical bathochromic shift indicating adsorption of dye molecules on the TiO2 layer was not observed, several ways are open to increase the efficiency in forthcoming studies.

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Isah, Kasim Uthman, Umar Ahmadu, Adamu Idris, Mohammed Isah Kimpa, Uno Essang Uno, Muhammed Muhammed Ndamitso, and Noble Alu. "Betalain Pigments as Natural Photosensitizers for Dye-Sensitized Solar Cells: The Effect of Dye pH on the Photoelectric Parameters." International Letters of Chemistry, Physics and Astronomy 55 (July 2015): 86–93. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.55.86.

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Dye-sensitized solar cells (DSSC) were fabricated using red Bougainvillea glabra flower dye extracts as natural dye sensitizers at three dye pH values of 1.23, 3.0 and 5.7. Water was used as dye extracting solvent. Dye-sensitized solar cells (DSSCs) from dye extract of pH 3.0 had the highest photocurrent density J of 3.72 mA/cm2 and fill factor FF of 0.59. While the DSSCs from dye sensitizer pHs of 1.23 and 5.7 had Jsc of 1.13 mA/cm2 and 2.27 mA/cm2, and fill factors of 0.43 and 0.61 respectively. The maximum powers Pmax of the DSSCs were 0.50, 1.64 and 0.94 mW/cm2 for dye sensitizer pH of 1.23, 3.0 and 5.7 respectively.

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Isah, Kasim Uthman, Umar Ahmadu, Adamu Idris, Mohammed Isah Kimpa, Uno Essang Uno, Muhammed Muhammed Ndamitso, and Noble Alu. "Betalain Pigments as Natural Photosensitizers for Dye-Sensitized Solar Cells: The Effect of Dye pH on the Photoelectric Parameters." International Letters of Chemistry, Physics and Astronomy 55 (July 3, 2015): 86–93. http://dx.doi.org/10.56431/p-nw0514.

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Dye-sensitized solar cells (DSSC) were fabricated using red Bougainvillea glabra flower dye extracts as natural dye sensitizers at three dye pH values of 1.23, 3.0 and 5.7. Water was used as dye extracting solvent. Dye-sensitized solar cells (DSSCs) from dye extract of pH 3.0 had the highest photocurrent density J of 3.72 mA/cm2 and fill factor FF of 0.59. While the DSSCs from dye sensitizer pHs of 1.23 and 5.7 had Jsc of 1.13 mA/cm2 and 2.27 mA/cm2, and fill factors of 0.43 and 0.61 respectively. The maximum powers Pmax of the DSSCs were 0.50, 1.64 and 0.94 mW/cm2 for dye sensitizer pH of 1.23, 3.0 and 5.7 respectively.

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Iftikhar, Haider, Gabriela Gava Sonai, Syed Ghufran Hashmi, Ana Flávia Nogueira, and Peter David Lund. "Progress on Electrolytes Development in Dye-Sensitized Solar Cells." Materials 12, no. 12 (June 21, 2019): 1998. http://dx.doi.org/10.3390/ma12121998.

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Dye-sensitized solar cells (DSSCs) have been intensely researched for more than two decades. Electrolyte formulations are one of the bottlenecks to their successful commercialization, since these result in trade-offs between the photovoltaic performance and long-term performance stability. The corrosive nature of the redox shuttles in the electrolytes is an additional limitation for industrial-scale production of DSSCs, especially with low cost metallic electrodes. Numerous electrolyte formulations have been developed and tested in various DSSC configurations to address the aforementioned challenges. Here, we comprehensively review the progress on the development and application of electrolytes for DSSCs. We particularly focus on the improvements that have been made in different types of electrolytes, which result in enhanced photovoltaic performance and long-term device stability of DSSCs. Several recently introduced electrolyte materials are reviewed, and the role of electrolytes in different DSSC device designs is critically assessed. To sum up, we provide an overview of recent trends in research on electrolytes for DSSCs and highlight the advantages and limitations of recently reported novel electrolyte compositions for producing low-cost and industrially scalable solar cell technology.

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Khatri, Ishwor, Jianfeng Bao, Naoki Kishi, and Tetsuo Soga. "Similar Device Architectures for Inverted Organic Solar Cell and Laminated Solid-State Dye-Sensitized Solar Cells." ISRN Electronics 2012 (July 14, 2012): 1–10. http://dx.doi.org/10.5402/2012/180787.

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Here, we examine the device architecture of two different types of solar cells mainly inverted organic solar cells and solid state dye-sensitized solar cells (DSSCs) that use organic materials as hole transportation. The inverted organic solar cells structure is dominated by work on titanium dioxide () and zinc oxide (ZnO). These layers are sensitized with dye in solid state DSSCs. Because of the similar device architecture, it becomes possible to fabricate laminated solid-state DSSCs. The performance of the device was improved by varying the top metal electrode. In laminated solid-state DSSC, we expect that excited dye molecules inject electron into the conduction band of nanocrystalline layer, whereas P3HT provides efficient hole transportation. These solar cells are promising for future energy source as they are cheaper, light weight, flexible and made into large areas, which are showing growing importance.

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Wu, Jihuai, Zhang Lan, Sanchun Hao, Pingjiang Li, Jianming Lin, Miaoliang Huang, Leqing Fang, and Yunfang Huang. "Progress on the electrolytes for dye-sensitized solar cells." Pure and Applied Chemistry 80, no. 11 (January 1, 2008): 2241–58. http://dx.doi.org/10.1351/pac200880112241.

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Dye-sensitized solar cells (DSSCs) have aroused intense interest over the past decade owing to their low cost and simple preparation procedures. Much effort has been devoted to the study of electrolytes that enable light-to-electrical power conversion for DSSC applications. This review focuses on recent progress in the field of liquid, solid-state, and quasi-solid-state electrolytes for DSSCs. It is believed that quasi-solid-state electrolytes, especially those utilizing thermosetting gels, are particularly applicable for fabricating high photoelectric performance and long-term stability of DSSCs in practical applications.

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Arifin, Zainal, Sudjito Soeparman, Denny Widhiyanuriyawan, and Suyitno Suyitno. "Performance Enhancement of Dye-Sensitized Solar Cells Using a Natural Sensitizer." International Journal of Photoenergy 2017 (2017): 1–5. http://dx.doi.org/10.1155/2017/2704864.

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Dye-sensitized solar cells (DSSCs) based on natural sensitizers have become a topic of significant research because of their urgency and importance in the energy conversion field and the following advantages: ease of fabrication, low-cost solar cell, and usage of nontoxic materials. In this study, the chlorophyll extracted from papaya leaves was used as a natural sensitizer. Dye molecules were adsorbed by TiO2 nanoparticle surfaces when submerged in the dye solution for 24 h. The concentration of the dye solution influences both the amount of dye loading and the DSSC performance. The amount of adsorbed dye molecules by TiO2 nanoparticle was calculated using a desorption method. As the concentration of dye solution was increased, the dye loading capacity and power conversion efficiency increased. Above 90 mM dye solution concentration, however, the DSSC efficiency decreased because dye precipitated on the TiO2 nanostructure. These characteristics of DSSCs were analyzed under the irradiation of 100 mW/cm2. The best performance of DSSCs was obtained at 90 mM dye solution, with the values of Voc, Jsc, FF, and efficiency of DSSCs being 0.561 V, 0.402 mA/cm2, 41.65%, and 0.094%, respectively.

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Cassone, Giuseppe, Giuseppe Calogero, Jiri Sponer, and Franz Saija. "Mobilities of iodide anions in aqueous solutions for applications in natural dye-sensitized solar cells." Physical Chemistry Chemical Physics 20, no. 18 (2018): 13038–46. http://dx.doi.org/10.1039/c8cp01155a.

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Dye-sensitized solar cells (DSSCs) composed of aqueous electrolytes represent an environmentally friendly, low-cost, and concrete alternative to standard DSSCs and typical solar cells. A joint experimental/computational study revealed the microscopic details behind the conduction properties of iodide anions in aqueous dye-sensitized solar cells.

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Zhang, Lei, and Jacqueline M. Cole. "Dye aggregation in dye-sensitized solar cells." Journal of Materials Chemistry A 5, no. 37 (2017): 19541–59. http://dx.doi.org/10.1039/c7ta05632j.

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Al-Marzouki, F. M., S. Abdalla, and S. Al-Ameer. "Dye Sensitized Solar Cells with Low Cost Carbon Nanotubes Electrodes." Advances in Materials Science and Engineering 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/4928710.

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Dye sensitized solar cells (DSSCs) are very sensitive to electrodes, due to either high cost or easy corrosion problems. To minimize these factors, we present DSSCs with cheap carbon nanotubes as counter electrodes. In addition, we suggest replacing the electrolyte (in typical DSSCs) with a solid film of powdered CsSnI3. The electrical behavior (I-Vcharacteristics) of the proposed device has been measured for different shading conditions. In the light of a theoretical model based on the presence of two diodes, the experimental data have been explained, taking into account a new equivalent circuit for the DSSC. These DSSCs may receive different levels of sun radiation, which stimulates the study of partial shading; so, we have studied the effect of different shadow rates on the solar conversion efficiency of a unit of 4-W-connected DSSCs. The validity of the present model has been examined by fitting it intoI-Vcharacteristics at different shading rates.

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Safie, Nur Ezyanie, Norasikin Ahmad Ludin, Norul Hisham Hamid, Paridah Md. Tahir, Mohd Asri Mat Teridi, Suhaila Sepeai, Mohd Adib Ibrahim, and Kamaruzzaman Sopian. "Electron transport studies of dye-Sensitized solar cells based on natural sensitizer extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood." BioResources 12, no. 4 (October 20, 2017): 9227–43. http://dx.doi.org/10.15376/biores.12.4.9227-9243.

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Dyes extracted from rengas (Gluta spp.) and mengkulang (Heritiera elata) wood were investigated as sensitizers in dye-sensitized solar cells (DSSCs). Three types of sensitizers, including individual sensitizer, mixture sensitizer, and co-sensitizer, exhibited different patterns of absorption properties under UV-Vis spectroscopy. The incident photon-to-current efficiency (IPCE) was analyzed via spectral response to examine the generation of photocurrent. Because mixture sensitized DSSCs obtained broader absorption spectra, they were expected to achieve good light harvesting and hence, enhanced photocurrent and conversion efficiency. The photovoltaic performance was further examined by electrochemical impedance spectroscopy (EIS). The mixture sensitized DSSCs exhibited good conversion efficiency (0.21% and 0.30%) compared with individual sensitized DSSCs (0.16% and 0.11%). The co-sensitized DSSCs also showed increased conversion efficiency with ruthenium (N719) dye as a co-sensitizer. The parameters calculated from EIS analysis were used to determine suitable conditions for the dye to be implemented in DSSC. The behavior of electron transport was determined to be efficient due to the increase of electron diffusion coefficient, electron lifetime, and low recombination rate as achieved by the mixture sensitized DSSCs.

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Chatterjee, Suman, and Indra Bahadur Karki. "Effect of Photoanodes on the Performance of Dye-Sensitized Solar Cells." Journal of the Institute of Engineering 15, no. 3 (October 13, 2020): 62–68. http://dx.doi.org/10.3126/jie.v15i3.32008.

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Dye sensitized Solar cell (DSSC) is a photo-electrochemical system which converts solar energy into electrical energy. In the present era DSSCs takes so much attention because of their considerably high efficiencies at a comparably low production cost. The nanostructured electrode plays a vital role in device properties. Originally, the nanostructured TiO2 were widely used as DSSC electrodes. Further, nanostructured ZnO has shown a great deal of research interest as the electrode material in DSSCs due to some of its fascinating properties. Compared to other semiconductors, it has unique properties such as large exciton binding energy, wide band gap, high breakdown strength, cohesion and exciton stability. In this paper, the construction and electron transport mechanism of DSSCs devices are described and a comparison of performances of DSSCs fabricated with ZnO or TiO2 photo electrodes was made in terms of its device parameters. This is further correlated with the band structure & density of states (DOS) of ZnO and TiO2 using Density functional theory (DFT) and finally the photovoltaic performance of ZnO and TiO2 based DSSCs was discussed to elucidate the differences.

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Wang, Hsiue-Hsyan, Chaochin Su, Huei-Siou Chen, Yi-Cheng Liu, Yi-Wen Hsu, Nai-Mu Hsu, and Wen-Ren Li. "Preparation of Nanoporous TiO2Electrodes for Dye-Sensitized Solar Cells." Journal of Nanomaterials 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/547103.

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Nano-porousTiO2thin films have been widely used as the working electrodes in dye-sensitized solar cells (DSSCs). In this work, the phase-pure anataseTiO2(a-TiO2) and rutileTiO2(r-TiO2) have been prepared using hydrothermal processes. The investigation of photo-to-electron conversion efficiency of DSSCs fabricated from mixed-TiO2with a-TiO2and r-TiO2ratio of 80 : 20 (A8R2) was performed and compared to that from commercialTiO2(DP-25). The results showed higher efficiency of DSSC for A8R2 cells with same dependence of cell efficiency on the film thickness for both A8R2 and DP-25 cells. The best efficiency obtained in this work is 5.2% from A8R2 cell withTiO2film thickness of 12.0 μm. The correlation between theTiO2films thickness and photoelectron chemical properties of DSSCs fabricated from A8R2 and DP-25 was compared and discussed.

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Anggraini, Putri Nur, Erlyta Septa Rosa, Natalita Maulani Nursam, Rico Fernado Sinaga, and Shobih Shobih. "Modifications of Liquid Electrolyte for Monolithic Dye-sensitized Solar Cells." Jurnal Elektronika dan Telekomunikasi 21, no. 1 (August 31, 2021): 35. http://dx.doi.org/10.14203/jet.v21.35-40.

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Dye-sensitized solar cells (DSSC) has been well known as a highly competitive photovoltaic technology owing to its interesting characteristics, such as, low-cost, simple, and convenient to modify both chemically and physically. One way to reduce the production cost of DSSCs is to conduct a structural modification in the form of a monolithic structure by using a single conductive substrate to accommodate both photoelectrode and counter electrode. However, the photovoltaic performance of monolithic DSSCs is typically still lacking compared to its conventional DSSCs counterparts that uses sandwich structure. One of the crucial factors that determine the photovoltaic performance of a monolithic DSSC is its electrolyte. In this work, the performance of monolithic DSSCs were studied through modifications of the electrolyte component. Two types of commercial liquid electrolytes that have different chemical properties were used and combined into various compositions, and the resulting DSSCs performances were compared. The stability of the monolithic cells was also monitored by measuring the cells repeatedly under the same condition. The result showed that during the first measurement the highest performance with a power conversion efficiency of 1.69% was achieved by the cell with a higher viscosity electrolyte. Meanwhile, the most stable performance is shown by the cell containing lower viscosity electrolyte, which achieved an efficiency of 0.66% that measured on day 35.

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Mitroi, Mihai Razvan, Laurentiu Fara, and Magdalena Lidia Ciurea. "Numerical Procedure for Optimizing Dye-Sensitized Solar Cells." Journal of Nanomaterials 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/378981.

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We propose a numerical procedure consisting of a simplified physical model and a numerical method with the aim of optimizing the performance parameters of dye-sensitized solar cells (DSSCs). We calculate the real rate of absorbed photons (in the dye spectral range)Grealxby introducing a factorβ<1in order to simplify the light absorption and reflection on TCO electrode. We consider the electrical transport to be purely diffusive and the recombination process only to occur between electrons from the TiO2conduction band and anions from the electrolyte. The used numerical method permits solving the system of differential equations resulting from the physical model. We apply the proposed numerical procedure on a classical DSSC based on Ruthenium dye in order to validate it. For this, we simulate theJ-Vcharacteristics and calculate the main parameters: short-circuit current densityJsc, open circuit voltageVoc, fill factor FF, and power conversion efficiencyη. We analyze the influence of the nature of semiconductor (TiO2) and dye and also the influence of different technological parameters on the performance parameters of DSSCs. The obtained results show that the proposed numerical procedure is suitable for developing a numerical simulation platform for improving the DSSCs performance by choosing the optimal parameters.

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Kim, Jihun, Horim Lee, Dong Young Kim, Sehyun Kim, and Yongsok Seo. "Cobalt-Based Electrolytes for Efficient Flexible Dye-Sensitized Solar Cells." MRS Advances 4, no. 08 (2019): 481–89. http://dx.doi.org/10.1557/adv.2019.126.

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AbstractWe have developed new flexible dye-sensitized solar cells (DSSCs) comprising organic dye (JH-1), cobalt redox electrolyte and hierarchically structured TiO2 (HS-TiO2) photoelectrode prepared using an electrostatic spray method. The performance of JH-1 sensitized flexible DSSC with a cobalt redox electrolyte was compared with those of N719-based DSSC and DSSC with I-/ I3- redox electrolyte. As a result, JH-1 sensitized flexible DSSC with [Co(Ⅲ/Ⅱ)(bpy-pz)3](PF6)3/2 redox system exhibited a high photocurrent density of 9.17 mA cm-2, an open circuit voltage of 0.953 V, a fill factor of 0.70, and a power conversion efficiency of 6.12% under 1 sun illumination (100 mW cm-2). The incident photon-to-current conversion efficiency was measured to explain the photocurrent generation difference by different dyes and electrolytes. The electron recombination lifetime of cells was measured by intensity-modulated photovoltage spectroscopy. Mass transport in DSSCs employing cobalt redox electrolytes was also investigated by the photocurrent transient measurements and electrochemical impedance spectroscopy (EIS) analysis.

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El-Ghamri, Hatem, Taher El-Agez, Sofyan Taya, Monzir Abdel-Latif, and Amal Batniji. "Dye-sensitized solar cells with natural dyes extracted from plant seeds." Materials Science-Poland 32, no. 4 (December 1, 2014): 547–54. http://dx.doi.org/10.2478/s13536-014-0231-z.

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AbstractThe application of natural dyes extracted from plant seeds in the fabrication of dye-sensitized solar cells (DSSCs) has been explored. Ten dyes were extracted from different plant seeds and used as sensitizers for DSSCs. The dyes were characterized using UV-Vis spectrophotometry. DSSCs were prepared using TiO2 and ZnO nanostructured mesoporous films. The highest conversion efficiency of 0.875 % was obtained with an allium cepa (onion) extract-sensitized TiO2 solar cell. The process of TiO2-film sintering was studied and it was found that the sintering procedure significantly affects the response of the cell. The short circuit current of the DSSC was found to be considerably enhanced when the TiO2 semiconducting layer was sintered gradually.

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Lai, Wen-Feng, Pei-Ling Chao, Xin-Yu Lin, Yin-Pei Chen, Jih-Hsin Liu, Tz-Feng Lin, Wei-Chou Hsu, and Chia-Yi Huang. "Characteristics of Dye-Sensitized Solar Cells with TiO2 Stripes." Materials 15, no. 12 (June 14, 2022): 4212. http://dx.doi.org/10.3390/ma15124212.

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A TiO2 strip array with a thickness of 90 nm was fabricated by photolithography and physical vapor deposition. This work utilized the chemical and physical methods to fabricate the TiO2 strip array. A porous semiconductor layer made of TiO2 nanoparticles was coated on the TiO2 strip array. The TiO2 strip array has a one-dimensional protrusive structure. The energy conversion efficiency (4.38%) of a dye-sensitized solar cell (DSSC) with the TiO2 strip array exceeded that (3.20%) of a DSSC without a TiO2 strip array by 37%. In addition, this result was verified by the electrochemical impedance spectra of the two DSSCs. Therefore, the TiO2 strip array can be used to increase the energy conversion efficiencies of DSSCs. The large energy conversion efficiency of the DSSC with the TiO2 strip array arises from the large surface area of the one-dimensional protrusive structure and its specific electron transport paths. The DSSC with the TiO2 strip array has advantages of economical production cost, easy fabrication, and boosting energy conversion efficiency.

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Baskaran, Dr M. "Fabrication of Dip Coated ZnO Nanorods for Organic Dye Sensitized Solar Cells." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (January 31, 2022): 1083–89. http://dx.doi.org/10.22214/ijraset.2022.39994.

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Abstract: Dye sensitized solar cell (DSSC) are new type of solar cell, has aroused worldwide attention which arises from its merits of low cost, ease of fabrication and environmental friendliness, etc. The development history, basic structure and working principle of the DSSC are introduced briefly, and the classification and development of DSSC are stated in detail. Dye sensitizers are divided into two major categories organic dyes and metal-organic compounds, and organic dyes can roughly be classified into several parts. A new form of solar cell is being investigated using a dye-sensitized solar cell (DSSC) using an inorganic semiconductor, due to the anticipated less costing solution to standard solid-state equipment. The formulation of effective solar cell contains countless semiconducting materials. This was an initiative of the researchers to study the fabricated of the natural dye sensitized solar cells for sol-gel dipping coated zinc oxide nanorod and also more voluminous in surface. Moreover, the corresponding assumptions and measures on how to improve the energy efficiency of the DSSCs are proposed, and finally the trends and promising prospects are presented. Keywords: ZnO Nanorods, Dye Sensitized Solar Cells (DSSC), Organic Solar Cell, Dip Coating Method

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Guo, Fu-an, Guoqiang Li, and Weifeng Zhang. "Barium Staminate as Semiconductor Working Electrodes for Dye-Sensitized Solar Cells." International Journal of Photoenergy 2010 (2010): 1–7. http://dx.doi.org/10.1155/2010/105878.

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Dye-sensitized solar cells (DSSCs) are fabricated with perovskite-typeBaSnO3as the photoelectrode materials. Different preparation methods including coprecipitation, hydrothermal, and solid state reaction are employed to synthesizeBaSnO3particles to optimize the photoelectric activities of electrode materials. The photoelectric properties ofBaSnO3particles and the performances of DSSCs are investigated by surface photovoltage spectroscopy and current-voltage measurements. The light-to-electricity conversion of 1.1% is preliminarily reached on the DSSC made of the coprecipitation-derivedBaSnO3particles. Large current density of hole injection into the HOMO level of N719 dye from the valence band ofBaSnO3and reduced photogenerated charge recombination inBaSnO3could be responsible for the observed solar cell performance of the DSSC fabricated from the coprecipitation-derivedBaSnO3particles.

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Chen, Li, Wei-Lin Chen, Xin-Long Wang, Yang-Guang Li, Zhong-Min Su, and En-Bo Wang. "Polyoxometalates in dye-sensitized solar cells." Chemical Society Reviews 48, no. 1 (2019): 260–84. http://dx.doi.org/10.1039/c8cs00559a.

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Mehmood, Umer, Saleem-ur Rahman, Khalil Harrabi, Ibnelwaleed A. Hussein, and B. V. S. Reddy. "Recent Advances in Dye Sensitized Solar Cells." Advances in Materials Science and Engineering 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/974782.

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Solar energy is an abundant and accessible source of renewable energy available on earth, and many types of photovoltaic (PV) devices like organic, inorganic, and hybrid cells have been developed to harness the energy. PV cells directly convert solar radiation into electricity without affecting the environment. Although silicon based solar cells (inorganic cells) are widely used because of their high efficiency, they are rigid and manufacturing costs are high. Researchers have focused on organic solar cells to overcome these disadvantages. DSSCs comprise a sensitized semiconductor (photoelectrode) and a catalytic electrode (counter electrode) with an electrolyte sandwiched between them and their efficiency depends on many factors. The maximum electrical conversion efficiency of DSSCs attained so far is 11.1%, which is still low for commercial applications. This review examines the working principle, factors affecting the efficiency, and key challenges facing DSSCs.

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Xu, Fang, Thomas T. Testoff, Lichang Wang, and Xueqin Zhou. "Cause, Regulation and Utilization of Dye Aggregation in Dye-Sensitized Solar Cells." Molecules 25, no. 19 (September 29, 2020): 4478. http://dx.doi.org/10.3390/molecules25194478.

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As an important member of third generation solar cell, dye-sensitized solar cells (DSSCs) have the advantages of being low cost, having an easy fabrication process, utilizing rich raw materials and a high-power conversion efficiency (PCE), prompting nearly three decades as a research hotspot. Recently, increasing the photoelectric conversion efficiency of DSSCs has proven troublesome. Sensitizers, as the most important part, are no longer limited to molecular engineering, and the regulation of dye aggregation has become a widely held concern, especially in liquid DSSCs. This review first presents the operational mechanism of liquid and solid-state dye-sensitized solar cells, including the influencing factors of various parameters on device efficiency. Secondly, the mechanism of dye aggregation was explained by molecular exciton theory, and the influence of various factors on dye aggregation was summarized. We focused on a review of several methods for regulating dye aggregation in liquid and solid-state dye-sensitized solar cells, and the advantages and disadvantages of these methods were analyzed. In addition, the important application of quantum computational chemistry in the study of dye aggregation was introduced. Finally, an outlook was proposed that utilizing the advantages of dye aggregation by combining molecular engineering with dye aggregation regulation is a research direction to improve the performance of liquid DSSCs in the future. For solid-state dye-sensitized solar cells (ssDSSCs), the effects of solid electrolytes also need to be taken into account.

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Cavallo, Carmen, Francesco Di Pascasio, Alessandro Latini, Matteo Bonomo, and Danilo Dini. "Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells." Journal of Nanomaterials 2017 (2017): 1–31. http://dx.doi.org/10.1155/2017/5323164.

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Since O’Regan and Grätzel’s first report in 1991, dye-sensitized solar cells (DSSCs) appeared immediately as a promising low-cost photovoltaic technology. In fact, though being far less efficient than conventional silicon-based photovoltaics (being the maximum, lab scale prototype reported efficiency around 13%), the simple design of the device and the absence of the strict and expensive manufacturing processes needed for conventional photovoltaics make them attractive in small-power applications especially in low-light conditions, where they outperform their silicon counterparts. Nanomaterials are at the very heart of DSSC, as the success of its design is due to the use of nanostructures at both the anode and the cathode. In this review, we present the state of the art for bothn-type andp-type semiconductors used in the photoelectrodes of DSSCs, showing the evolution of the materials during the 25 years of history of this kind of devices. In the case ofp-type semiconductors, also some other energy conversion applications are touched upon.

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Reda, Safenaz M., and Said A. El-Sherbieny. "Dye-sensitized nanocrystalline CdS and ZnS solar cells with different organic dyes." Journal of Materials Research 25, no. 3 (March 2010): 522–28. http://dx.doi.org/10.1557/jmr.2010.0077.

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We have developed dye-sensitized nanocrystalline CdS and ZnS solar cells (DSSCs) based on crystal violet, methylene blue, and fluorescein photosensitizers. Nanocrystalline CdS and ZnS were synthesized by a green synthesis method using starch as the capping agent. Characterization of nanocrystalline CdS and ZnS was carried out by optical absorption and x-ray diffraction. The results indicate that CdS and ZnS prepared by this method may be used as photoelectodes in photo-electro-chemical energy conversion systems. DSSCs have been built and their photocurrent, open-circuit voltage, fill factor, and efficiency have been measured under direct sunlight illumination (1000 Wcm−2). The efficiency of the cells made from dye-CdS was much higher than that of the cells made from dye-ZnS. This can be attributed to the particle size effect. Among the prepared dye-sensitized solar cells, a DSSC based on fluorescein dye as the photosensitizer produced the highest overall light solar energy to electricity conversion efficiency.

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Yeoh, Mian-En, Adrian Jaloman, and Kah-Yoong Chan. "Aging effect in dye-sensitized solar cells sealed with thermoplastic films." Microelectronics International 36, no. 2 (April 1, 2019): 68–72. http://dx.doi.org/10.1108/mi-11-2018-0075.

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Purpose The purpose of this paper is to elucidate the aging effect in dye-sensitized solar cells (DSSCs) sealed with thermoplastic film and to compare it with unsealed DSSCs. Design/methodology/approach The paper presents the steps of the fabrication of standard DSSC, as well as the DSSC-sealing processes, by using thermoplastic film. Current-voltage characterization was performed to observe the changes in efficiency, fill factor, short circuit current density and open circuit voltage for both unsealed and sealed DSSCs for aging time up to 336 h. Findings The unsealed DSSC showed significant drop in efficiency from 4.26 to 2.42 per cent within the first 5.5 h of aging time because of the leakage and volatilization of the solvent in the electrolyte. On the other hand, the sealed DSSC exhibited a gradual improvement of efficiency from 4.16 to 4.73 per cent after the first 216 h of aging time. The initial efficiency increment can be ascribed to the improved adsorption of electrolyte into the titanium dioxide film because of the gradual desorption of excess dye from TiO2 with increasing aging time. Originality/value This paper demonstrates the importance of the proper sealing process for the long-term operation of DSSC.

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Caramori, Stefano, Vito Cristino, Rita Boaretto, Roberto Argazzi, Carlo Alberto Bignozzi, and Aldo Di Carlo. "New Components for Dye-Sensitized Solar Cells." International Journal of Photoenergy 2010 (2010): 1–16. http://dx.doi.org/10.1155/2010/458614.

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Dye-Sensitized Solar Cells (DSSCs) are among the most promising solar energy conversion devices of new generation, since coupling ease of fabrication and low cost offer the possibility of building integration in photovoltaic windows and facades. Although in their earliest configuration these systems are close to commercialization, fundamental studies are still required for developing new molecules and materials with more desirable properties as well as improving our understanding of the fundamental processes at the basis of the functioning of photoactive heterogeneous interfaces. In this contribution, some recent advances, made in the effort of improving DSSC devices by finding alternative materials and configurations, are reviewed.

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Saito, Yosuke, Kentaro Iwata, Satoshi Uchida, Takaya Kubo, and Hiroshi Segawa. "Evaluation Methods of Energy-Storable Dye-Sensitized Solar Cells." Materials Science Forum 658 (July 2010): 507–10. http://dx.doi.org/10.4028/www.scientific.net/msf.658.507.

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Energy-storable dye-sensitized solar cell (ES-DSSC), which possesses a unique three-electrode system composed of a photoanode, a counter electrode and a charge-storage electrode, is a practical solar rechargeable battery. The ES-DSSC is able to yield output power even in the dark after photocharging and suppress the fluctuation of the output power under the capricious solar irradiation. In this study, the evaluation methods of the ES-DSSC performances were investigated toward their practical use under various illumination conditions. The ES-DSSCs were found to be able to work even under low light intensity. Unlike conventional DSSC array, the ES-DSSC array coupled in a series connection gave a stable output voltage when one of the cells or both cells were shadowed.

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Jain, Kalpna, Sreejith Kaniyankandy, Shyam Kishor, Ida Josefsson, Hirendra N. Ghosh, Khundrakpam S. Singh, Sumit Mookerjee, Michael Odelius, and Lavanya M. Ramaniah. "Density functional investigation and some optical experiments on dye-sensitized quantum dots." Physical Chemistry Chemical Physics 17, no. 43 (2015): 28683–96. http://dx.doi.org/10.1039/c5cp03816b.

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Mendoza, Leonel, Jermaine Ritzchelle Marquez, and Nora C. Cabaral. "Fabrication of Improvised Dye-Sensitized Solar Cells from Mangosteen Pericarp Extract." Philippine Journal of Agricultural Economics 3, no. 1 (January 4, 2019): 28–39. http://dx.doi.org/10.7719/pjae.v3i1.669.

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Recent researches are geared towards finding alternative sources of renewable energy and solar power seems to be an attractive avenue and currently, dye-sensitized solar cells (DSSC) have gained worldwide attention. This study aimed to fabricate DSSC that makes use of an improvised conductive glass, with zinc oxide in nappy cream as photoanode and mangosteen pericarp extract as a sensitizer. It sought to find the effect of DSSC processing on the conductivity and performance in terms of current, voltage, and power density generated, and evaluate its stability. Ordinary 1/8" mirror was made conductive glass by stripping the gray coat with very fine sandpaper then heating to remove the orange coat. Conductivity was good (2.1 ohms) and etching with povidone-iodine provided transparency for the photoanode. The DSSCs were capable of producing a mean current of 0.0007 mA and mean voltage of 2.8670 mV that last for ninety minutes. The present study showed DSSCs could be constructed using indigenous materials. Further research is needed for finding ways to improve its efficiency and lifespan. By knowing the principles of the DSSCs, and enhancing the innovativeness and creativity of the current DSSC, researchers can overcome the lack of expensive materials and equipment for future studies.

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Semalti, Pooja, and Shailesh Narain Sharma. "Dye Sensitized Solar Cells (DSSCs) Electrolytes and Natural Photo-Sensitizers: A Review." Journal of Nanoscience and Nanotechnology 20, no. 6 (June 1, 2020): 3647–58. http://dx.doi.org/10.1166/jnn.2020.17530.

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Dye-sensitized solar cells (DSSCs) have become the subject matter of significant interest for the research and due to their urge in the field of energy conservation. The safe supply of energy is welfare of human life. However, as an unattainable power-energy conservation source, also depletion of fossil fuels is an unfortunate mandate and, definitely it is imminent. To encounter this critical issue of energy, non-conventional sources of energy have gained lots of attention, especially solar energy because it’s a device that converts light-energy directly to electrical-energy without harming the environment. DSSCs provides a reliable and a cheap alternative for different kinds of Photovoltaics. The spectacle realization of Dye-sensitized-solar-cell is typically relying on photosensitizer (Dye), electrolyte and metal oxide semiconductor. A natural dye has become most credible alternative for such expensive and rare inorganic/chemical sensitizers, due to its lower cost, easy fabrication, eco-friendly and abundance of raw material. Also, DSSC has easily implemented technology with significant efficiency. This review paper enlightens the emergence, operation/fabrication, components and development of DSSCs using natural photo-sensitizers and factors that affect the stability.

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Zou, Xiaoping, Yan Liu, Cuiliu Wei, Zongbo Huang, and Xiangmin Meng. "TiCl4Pretreatment and Electrodeposition Time Investigations of ZnO Photoelectrodes Preparation for Dye Sensitized Solar Cells." International Journal of Photoenergy 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/890563.

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TiCl4pretreatment is used in the fabrication of high performance photoanodes for dyes-sensitized solar cells (DSSCs). In this paper, TiCl4pretreatment was used on fluorine doped tin oxide (FTO) before fabricating ZnO films by electrochemical method. The effects of TiCl4pretreatment on some important parameters of solar cells, such as short-circuit current (Jsc) and filling factor, were investigated. The morphology of ZnO films was changed after TiCl4pretreatment, which can offer large surface area to absorb much more dyes. When the time of electrodeposition was 3 min, the dyes-sensitized solar cells (DSSCs) based on TiCl4pretreatment ZnO films showed more superior photoelectrochemical performance. The parameters of DSSCs are greatly improved. The DSSC based on ZnO films after TiCl4pretreatment has a very promising value for fabricating high performance solar cells.

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Raut, Prasad, Vinay Kishnani, Kunal Mondal, Ankur Gupta, and Sadhan C. Jana. "A Review on Gel Polymer Electrolytes for Dye-Sensitized Solar Cells." Micromachines 13, no. 5 (April 27, 2022): 680. http://dx.doi.org/10.3390/mi13050680.

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Significant growth has been observed in the research domain of dye-sensitized solar cells (DSSCs) due to the simplicity in its manufacturing, low cost, and high-energy conversion efficiency. The electrolytes in DSSCs play an important role in determining the photovoltaic performance of the DSSCs, e.g., volatile liquid electrolytes suffer from poor thermal stability. Although low volatility liquid electrolytes and solid polymer electrolytes circumvent the stability issues, gel polymer electrolytes with high ionic conductivity and enduring stability are stimulating substitutes for liquid electrolytes in DSSC. In this review paper, the advantages of gel polymer electrolytes (GPEs) are discussed along with other types of electrolytes, e.g., solid polymer electrolytes and p-type semiconductor-based electrolytes. The benefits of incorporating ionic liquids into GPEs are highlighted in conjunction with the factors that affect the ionic conductivity of GPEs. The strategies on the improvement of the properties of DSSCs based on GPE are also presented.

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Juhász Junger, Irén, Daria Wehlage, Robin Böttjer, Timo Grothe, László Juhász, Carsten Grassmann, Tomasz Blachowicz, and Andrea Ehrmann. "Dye-Sensitized Solar Cells with Electrospun Nanofiber Mat-Based Counter Electrodes." Materials 11, no. 9 (September 4, 2018): 1604. http://dx.doi.org/10.3390/ma11091604.

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Textile-based dye-sensitized solar cells (DSSCs) can be created by building the necessary layers on a textile fabric or around fibers which are afterwards used to prepare a textile layer, typically by weaving. Another approach is using electrospun nanofiber mats as one or more layers. In this work, electrospun polyacrylonitrile (PAN) nanofiber mats coated by a conductive polymer poly(3,4-ethylenedioxythiopene) polystyrene sulfonate (PEDOT:PSS) were used to produce the counter electrodes for half-textile DSSCs. The obtained efficiencies were comparable with the efficiencies of pure glass-based DSSCs and significantly higher than the efficiencies of DSSCs with cotton based counter electrodes. The efficiency could be further increased by increasing the number of PEDOT:PSS layers on the counter electrode. Additionally, the effect of the post treatment of the conductive layers by HCl, acetic acid, or dimethyl sulfoxide (DMSO) on the DSSC efficiencies was investigated. Only the treatment by HCl resulted in a slight improvement of the energy-conversion efficiency.

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Vlachopoulos, Nick, and Anders Hagfeldt. "Photoelectrochemical Cells Based on Dye Sensitization for Electricity and Fuel Production." CHIMIA International Journal for Chemistry 73, no. 11 (November 1, 2019): 894–905. http://dx.doi.org/10.2533/chimia.2019.894.

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Dye-sensitized semiconductor oxide photoelectrodes in which light is absorbed by a monomolecular layer of dye chemisorbed on a porous oxide substrate have attracted considerable interest in the last 35 years, mainly for the conversion of sunlight to electricity, in dye-sensitized solar cells (DSSCs) with maximal efficiencies in the range 10–15%, and, most recently, as dye-sensitized photoelectrochemical cells (DSPECs) for the generation of solar fuels. In the latter direction, considerable progress has been achieved but the efficiency is notably lower than for electricity generation. In the present review, the basic physicochemical principles of the DSSC and DSPEC operation are described, several keynote results reported, and the factors limiting the performance and necessitating further research highlighted.

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Patil, Kaustubh, Soheil Rashidi, Hui Wang, and Wei Wei. "Recent Progress of Graphene-Based Photoelectrode Materials for Dye-Sensitized Solar Cells." International Journal of Photoenergy 2019 (March 26, 2019): 1–16. http://dx.doi.org/10.1155/2019/1812879.

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Graphite with a single atomic layer known as graphene shows great capability in energy conversion and storage devices. Dye-sensitized solar cells (DSSCs) have attracted intense interests due to offering high photo-to-electric conversion efficiencies. DSSCs are built from a photoelectrode (a dye-sensitized nanocrystalline semiconductor), an electrolyte with redox couples, and a counterelectrode. In this review article, we outline the strategies to enhance the efficiency and reduce the cost by introducing graphene into the DSSCs as the photoelectrode. First, the development of DSSCs and the properties of graphene are briefly described. Then, the applications of graphene-based materials for photoelectrodes (transparent electrode, semiconductor layer, and dye sensitizer) in DSSCs are deeply discussed. Finally, an outlook for graphene materials in DSSCs is provided.

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Ukpene, A. O., J. C. Morka, and O. C. Molua. "Review on the Use of Dyestuff for Enhancement of Dye-Sensitized Solar Cell Efficiency." Journal of Applied Sciences and Environmental Management 26, no. 8 (August 31, 2022): 1409–13. http://dx.doi.org/10.4314/jasem.v26i8.14.

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Dye-sensitized solar cells (DSSCs) have high energy conversion efficiency and environmental friendliness. Consequently, the aim of this paper is to review the use of dyestuff for the enhancement of dye sensitive solar cell efficiency. For this reason, this paper gives a background of dye stuff, types and limitations and investigates the important criteria which are considered for selecting dye to enhance DSSC efficiency.

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Gondane, Vivekanand, and Parag Bhargava. "Acetylacetone: a promising electrolyte solvent for dye sensitized solar cells." RSC Advances 6, no. 43 (2016): 37167–72. http://dx.doi.org/10.1039/c6ra03329f.

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Hailu, Yohannes Mulugeta, Minh Tho Nguyen, and Jyh-Chiang Jiang. "Effects of the terminal donor unit in dyes with D–D–π–A architecture on the regeneration mechanism in DSSCs: a computational study." Physical Chemistry Chemical Physics 20, no. 36 (2018): 23564–77. http://dx.doi.org/10.1039/c8cp03821j.

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This theoretical study on dye-sensitized solar cells (DSSCs) includes design strategies for dye donor units to improve the efficiency of DSSCs, and further illuminates the organic dye regeneration mechanism.

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Castillo-Robles, José A., Enrique Rocha-Rangel, José A. Ramírez-de-León, Frida C. Caballero-Rico, and Eddie N. Armendáriz-Mireles. "Advances on Dye-Sensitized Solar Cells (DSSCs) Nanostructures and Natural Colorants: A Review." Journal of Composites Science 5, no. 11 (October 29, 2021): 288. http://dx.doi.org/10.3390/jcs5110288.

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Human beings are attempting to take advantage of renewable natural resources by using solar cells. These devices take the sun’s radiation and convert it into electrical energy. The issue with traditional silicon-based solar cells is their manufacturing costs and environmental problems. For this reason, alternatives have been developed within the solar cell field. One of these alternatives is the dye-sensitized solar cell (DSSC), also known as Grätzel solar cells. DSSCs are a type of solar cell that mimics photosynthesis. They have a photoanode, which is formed by a semiconductor film sensitized with a dye. Some of their advantages include low-cost manufacturing, eco-friendly materials use, and suitability for most environments. This review discusses four important aspects, with two related to the dye, which can be natural or synthetic. Herein, only natural dyes and their extraction methods were selected. On the other hand, this paper discusses the nanostructures used for DSSCs, the TiO2 nanostructure being the most reported; it recently reached an efficiency level of 10.3%. Finally, a review on the novelties in DSSCs technology is presented, where it is observed that the use of Catrin protein (cow brain) shows 1.45% of efficiency, which is significantly lower if compared to Ag nanoparticles doped with graphene that report 9.9% efficiency.

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Karki, I. B., S. Chatterjee, J. J. Nakarmi, D. Sinha, D. Goswami, and P. K. Mandal. "Photovoltaic Characterization of Dye-sensitized Solar Cells with Natural Dyes using Synthesized ZnO nanostructures." Journal of Nepal Chemical Society 30 (December 15, 2013): 56–61. http://dx.doi.org/10.3126/jncs.v30i0.9336.

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Considerable attention was created over the past decade on Dye-sensitized solar cells (DSSCs) as a viable alternate technology for renewable energy. Much attention was attracted due to their high efficiencies and potentially low production costs. In this paper, DSSCs with natural dyes were successfully synthesized using ZnO nanostructures. ZnO nanorods were grown on an ITO coated glass using sol-gel method and used to fabricate DSSCs using natural dyes and liquid potassium iodide (KI3) electrolyte. Different natural dye were analyzed for its suitability to be used in DSSC and subsequently used to fabricate the cell. Finally the photovoltaic properties of the ZnO based DSSC samples were systematically analyzed. Roles of new sensitizer dye were investigated and the results were compared. The ZnO nanorods grown by the sol-gel method have more uniform thickness. The DSSC structure with Carbon counter electrode yields an open circuit voltage markedly higher from DSSC on an ITO glass and has energy conversion efficiency less than 2%.DOI: http://dx.doi.org/10.3126/jncs.v30i0.9336Journal of Nepal Chemical Society Vol. 30, 2012 Page: 56-62 Uploaded date: 12/16/2013

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Wang, Xiu Fang, Ya Han Wu, Cai Xia Yang, Meng Jun Yuan, Yan Huo, Na Liu, Jun Zhang, and Wei Guo. "The Photovoltaic Efficiency of the Dye-Sensitized Solar Cells at Different Annealing Temperatures." Advanced Materials Research 953-954 (June 2014): 128–31. http://dx.doi.org/10.4028/www.scientific.net/amr.953-954.128.

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Upconversion NaYF4:Yb3+Er3+@TiO2 are synthesized and used to compose the photoelectrode (PE) of dye-sensitized solar cells (DSSCs). The morphology, structure, photoluminescence characterization of the NaYF4:Yb3+, Er@TiO2 and the photoelectric performance, alternating current impedance spectroscopy of DSSCs are characterized using transmission electron microscopy, CHI660C electrochemical analyzer, 720 nm long wave pass filter, the infrared laser light, upconversion spectra. Comparing the output power of the DSSC with upconversion performance at different annealing temperatures, the DSSCs under annealing temperature (330°C) show a better photovoltaic efficiency.

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K.C. Chen, James, and Van Kien Pham. "A study on knowledge flows of dye-sensitized solar cells’ patent." Foresight 16, no. 3 (June 3, 2014): 229–49. http://dx.doi.org/10.1108/fs-11-2012-0088.

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Purpose – The purpose of this paper is to determine the development and knowledge flows of dye-sensitized solar cells (DSSCs) via the use of patent inventor database. Moreover, this study aims to explore patentees and inventors’ companies to help readers and practitioners to be able to understand the patentees, technology development and activities of knowledge flows from four countries. DSSCs, which are known as one of the key technologies of green energy, have been applied ever more widely to many different industries, and their use has quickly grown with a number of scientific publications and patent applications. Design/methodology/approach – This paper was based on the US patent database collection of third-generation DSSCs in four typical countries such as USA, Japan, Germany and Taiwan to map the knowledge network of DSSC technology via the social network analysis method. Findings – The knowledge network of 132 DSSC patents was explored. Among the four countries, Japan leads, with the main patent number being H01G009. This paper also indicates the knowledge flow situation of Japanese inventors of DSSCs. For example, patented inventors Wariishi and Koji (JP) served the Fuji Photo Film Co., Ltd. (JP) in 2002, and then in 2008, transferred to the Fuji Film Corporation (JP). This means that the knowledge of technology was transferred by people who moved to another company for a new job. Research limitations/implications – This study is based on US Patent and Trademark Office patent database to do exploration. Practical implications – This study was expected to provide information for the industry, government and academia, so that they will understand the trajectory of the technology inventor, specialist cultivation and technology development in the DSSC industry. Originality/value – This study provides useful information for the green energy industry, government and academia to understand the importance of the knowledge flows and future development of DSSC technology of the solar cell industry. Thereby, they can intensify industrial competence and innovation by externally collaborating in this field as well as to increase the industrial competence by reimbursing the funds from government and other research institutes.

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Qu, Jie, and Chao Lai. "One-DimensionalTiO2Nanostructures as Photoanodes for Dye-Sensitized Solar Cells." Journal of Nanomaterials 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/762730.

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Titanium dioxide (TiO2) is star materials due to its remarkable optical and electronic properties, resulting in various applications, especially in the fields of dye-sensitized solar cells (DSSCs). Photoanode is the most important part of the DSSCs, which help to adsorb dye molecules and transport the injected electrons. The size, structure, and morphology of TiO2photoanode have been found to show significant influence on the photovoltaic performance of DSSCs. In this paper, we briefly summarize the synthesis and properties of one-dimensional (1D) TiO2nanomaterials (bare 1D TiO2nanomaterial and 1D hierarchical TiO2) and their photovoltaic performance in DSSCs.

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Journal articles on the topic 'Dye-sensitized Solar Cells (DSSCs)'

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