Relevant bibliographies by topics / PCBM Solar Cell

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'PCBM Solar Cell'

Author: Grafiati
Published: 9 March 2023

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Journal articles on the topic "PCBM Solar Cell"

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Ismail, Yasser A. M., T. Soga, and T. Jimbo. "Investigation of PCBM Concentration on the Performance of Small Organic Solar Cell." ISRN Renewable Energy 2012 (August 16, 2012): 1–8. http://dx.doi.org/10.5402/2012/385415.

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We have fabricated bulk heterojunction organic solar cells using coumarin 6 (C6) as a small organic dye, for light harvesting and electron donating, with fullerene derivative [6,6]-phenyl-C61 butyric acid methyl ester (PCBM), acting as an electron acceptor, by spin-coating technique of the blend solutions. We have studied effect of PCBM concentration on photocurrent and performance parameters of the solar cells. We found that the optical absorption of the dye increased with increasing its concentration in the active layer blends. The higher concentrations of PCBM in active layer enhanced the photocurrent of the solar cells, as a result of improving charge carrier separation and electron transport in solar cell active layer. The improved charge carrier separation between C6, as a donor, and PCBM, as an acceptor, was indicated through the formation of bulk heterojunction by blending C6 with PCBM. The formation of C6:PCBM bulk heterojunction blend was confirmed through the symbatic behavior of the corresponding solar cell and, also, through the homogeneity and smoothing in the atomic force microscopy images of the C6:PCBM blend films. For the same reasons, the performance parameters of the C6:PCBM solar cell improved by modification of the PCBM concentration in the solar cell active layer.
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YUE, GENTIAN, JIHUAI WU, YUNFANG HUANG, YAOMING XIAOMING XIAO, and ZHANG LAN. "IODINE/IODIDE-FREE AND POLYMER HETEROJUNCTION-SENSITIZED HYBRID SOLAR CELL." Functional Materials Letters 05, no. 02 (June 2012): 1260004. http://dx.doi.org/10.1142/s1793604712600041.

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An iodine/iodide-free and polymer heterojunction-sensitized hybrid solar cell is fabricated by using 6,6-phenyl- C61 -butyric acid methyl ester (PCBM) as electronic acceptor, poly(3-hexylthiophene) (P3HT) as donor and TiO2 film as substrate. The PCBM–P3HT heterojunction can harvest ultraviolet-visible light, transport charge carriers, replacing the dyes and electrolytes in dye-sensitized solar cell. The cell with a PCBM/P3HT ratio of 1:2 shows a short circuit current of 5.47 mA⋅cm-2, an open circuit voltage of 0.849 V, a fill factor of 0.640 and a light-to-electric energy conversion efficiency of 2.97% under a simulated solar light irradiation of 100 mW⋅cm-2.
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Salem, Dalila, Manal Shalabi, Fathi Souissi, Farida Nemmar, Mohammed Said Belkaid, Muhammad Aamir, and Jean-Michel Nunzi. "Ag nanoparticle-based efficiency enhancement in an inverted organic solar cell." European Physical Journal Applied Physics 90, no. 3 (June 2020): 30201. http://dx.doi.org/10.1051/epjap/2020200112.

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Herein, we demonstrate the improvement in performance of inverted organic solar cells fabricated with an Ag-nanoparticle (Np) modified ZnO-electron transport layer. Ag NP incorporation into the ZnO layer increases light harvesting efficiency of the solar device which untimely improves Jsc of the device. As a result, power conversion efficiency (PCE) of ZnO + Ag Np buffer layer based (ITO/ZnO:Ag NP/P3HT: PCBM/MoO3/Ag) device reaches 3.02% which is 27% higher than ITO/ZnO/P3HT: PCBM/MoO3/Ag device and 55.6% higher than the electron transfer layer(ETL) free (ITO/P3HT: PCBM/MoO3/Ag) control device.
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Shafai, T. S., and O. Oklobia. "Effects of PCBM Loading and Thermal Annealing on Nanomorphology of Blend of Polymer/Fullerene Thin Films Solar Cells: Impact on Charge Carrier Mobility and Efficiency." Applied Mechanics and Materials 467 (December 2013): 160–65. http://dx.doi.org/10.4028/www.scientific.net/amm.467.160.

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Blend of P3HT/Fullerene thin films solar cell with two different percentage ratio of PCBM loading is investigated. Optical absorption spectroscopy is employed to elucidate the nature of PCBM cluster formation upon thermal annealing. Sandwich structures comprising of ITO/ Cs2CO3/ P3HT: PCBM/ LiF/ Al (electron only device), and ITO/ PEDOT:PSS/ P3HT:PCBM/ Au (hole only device) are fabricated using spin coating for the investigations concerning electron and hole mobilities. The impact of charge carrier mobilities on bimolecular recombination and ultimately the power conversion efficiency for two different PCBM loading is also investigated. A direct correlation between Langev in recombination rate and short circuit current density as a function of thermal annealing is realized. The maximum power conversion efficiency is measured at 150°C for P3HT: PCBM (1:1) solar cell.
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Choi, Jung Hei, Mohamed E. El-Khouly, Taehee Kim, Youn-Su Kim, Ung Chan Yoon, Shunichi Fukuzumi, and Kyungkon Kim. "Solution-Processed Bulk Heterojunction Solar Cells with Silyl End-Capped Sexithiophene." International Journal of Photoenergy 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/843615.

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We fabricated solution-processed organic photovoltaic cells (OPVs) using substituted two sexithiophenes, a,w-bis(dimethyl-n-octylsilyl)sexithiophene (DSi-6T) and a,w-dihexylsexithiophene (DH-6T), as electron donors, and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as an electron acceptor. Solution-processed OPVs usingDH-6TandDSi-6Tshowed good photovoltaic properties in spite of their poor solubility. The best performance was observed onDSi-6T : PCBM 1 : 5 (w/w) blend cell with an open circuit voltage (Voc) of 0.63 V, short circuit current density (Jsc) of 1.34 mA/cm2, fill factor (FF) of 55%, and power conversion efficiency of 0.44% under AM 1.5 G illumination. AlthoughDH-6Thas higher hole mobility thanDSi-6T, theDSi-6T : PCBM blend cell showed higher hole mobility thanDH-6T : PCBM cell. Therefore,DSi-6Tcell showed higher device performance thanDH-6Tcell due to its silyl substitutions, which lead to the increase of the solubility. The incorporation of solution-processed TiO2interfacial layer in theDSi-6T : PCBM devices significantly enhances FF due to the reduced charge recombination near active layer/Al interface.
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Lu, Gang, Fengqin He, Shangzheng Pang, Haifeng Yang, Dazheng Chen, Jingjing Chang, Zhenhua Lin, Jincheng Zhang, and Chunfu Zhang. "A PCBM-Modified TiO2 Blocking Layer towards Efficient Perovskite Solar Cells." International Journal of Photoenergy 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/2562968.

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Organometal halide perovskite as a promising absorber in solar cells has caught tremendous attention in the past few years. Herein, a hydrophobic PCBM layer was introduced into planar heterojunction perovskite solar cells to form the TiO2/PCBM double blocking layer. The bilayer structure assures the formation of a dense, smooth, and pinhole-free blocking layer. And the PCBM layer can also be in favor of larger grain size perovskite film and further passivate the TiO2 blocking layer. Scanning electron microscope, atomic force microscope, and X-ray diffraction (XRD) results suggest the formation of a uniform and compact CH3NH3PbI3−xClx perovskite layer on the PCBM-modified TiO2 blocking layer. The solar cell has reached a PCE up to 16.37%, which is greatly larger than the control device with a PCE of 10.81%.
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Miwa, Masaya, and Hideo Furuhashi. "Morphologies of P3HT and P3HT/PCBM Thin Films Prepared by Drop Casting and Spin Coating." Advanced Materials Research 718-720 (July 2013): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.3.

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P3HT and P3HT/PCBM organic films are prepared by drop casting and spin coating and are used to fabricate solar cells on ITO. The solar cell properties are investigated by UVvisible absorption spectroscopy and X-ray diffraction (XRD). and their morphologies are discussed. The results indicate that the molecular chains of the P3HT film prepared by drop casting are perpendicular to the substrate, whereas those of the film prepared by spin coating are oriented parallel to the substrate. P3HT/PCBM films are prepared by spin coating using different PCBM/P3HT ratios.
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Liu, Meiyue, Ziming Chen, Yongchao Yang, Hin-Lap Yip, and Yong Cao. "Reduced open-circuit voltage loss for highly efficient low-bandgap perovskite solar cells via suppression of silver diffusion." Journal of Materials Chemistry A 7, no. 29 (2019): 17324–33. http://dx.doi.org/10.1039/c9ta04366g.

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Ag diffused across the PCBM layer increased the trap density and down-shifted the energy level of the perovskite layer. Fortunately, PCBM/ZnO layer efficiently suppressed the Ag diffusion, resulting in a perovskite solar cell with PCE of 18.1%.
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Hima, Abdelkader. "Enhancing of CH3NH3SnI3 based solar cell efficiency by ETL engineering." International Journal of Energetica 5, no. 1 (July 6, 2020): 27. http://dx.doi.org/10.47238/ijeca.v5i1.119.

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Solar cells based on organic-inorganic perovskites (PVK) are the subject of several researches in laboratories around the world. One of the most promising hybrid perovskite is the methylammonium lead tri-iodide MAPbI3 that is suitable for sun light harvesting. But the MAPbI3 is a toxic material, so in this paper is proposed another nature friendly candidate which is the methylammonium tin tri-iodide MASnI3. The proposed material is inserted into an n-i-p heterojunction solar cell which structure is electron transport layer (ETL)/PVK/hole transport layer (HTL). The used HTL is the PEDOT: PSS in combination with one of two ETLs which are the PCBM and the IGZO. Simulation efforts using 1D SCAPS was carried. It is found that IGZO ETL based solar cell yields a higher power conversion efficiency (PCE) compared with PCBM ETL based solar cell in the same thickness.
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Ahmad, Khursheed, and Shaikh M. Mobin. "Graphene oxide based planar heterojunction perovskite solar cell under ambient condition." New Journal of Chemistry 41, no. 23 (2017): 14253–58. http://dx.doi.org/10.1039/c7nj02847d.

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Dissertations / Theses on the topic "PCBM Solar Cell"

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De, Bastiani Michele. "The Stability of Third Generation Solar Cells." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424345.

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In the lasts fifty years the tremendous evolution of modern technologies has gradually unbalanced the equilibrium between the production and the consumption of energy. Traditional energy resources, like coal, oil and natural gases, are no longer sufficient to satisfy the demand of energy without spoiling earth environment. Renewable energies have attracted a lot of attention because they are potential solution to this important problem. In particular photovoltaic solar cells are considered the most promising technology for a low-cost and environmentally friendly energy production. However, in order to exploit these technologies in real world applications, the complete physics of solar cells must be understood. Stability is one of the fundamental aspects and is related to the processes that regulate the energy conversion, both in long-term degradation as well in electrical stability. In this work the stability of two emerging categories of solar cells is thoroughly addressed: organic photovoltaics and organometal-halide perovskite. In organic photovoltaics understanding the stability and degradation mechanisms of photoactive blends is required to achieve long device lifetimes. Recent reports on organic solar cells presenting power conversion efficiencies exceeding 10% have made the need to improve the device stability compelling. In general, instability is caused by the combination of light and atmospheric agents, with major roles of oxygen and water. The detrimental effects are electron trapping and photo-oxidation that break polymer conjugation and bleach the absorption. However, so far, no effective solution preserving low cost and flexibility has been achieved. The reason is that the degradation mechanisms are still unknown. Solution-processable hybrid perovskite semiconductors have risen to the forefront of photovoltaics research, offering the potential to combine low-cost fabrication with high-power conversion efficiency (PCE). Originally used in dye-sensitized solar cell technology, the first architectures saw the use of TiO2, both in the form of mesoporous and compact films, as an electron extracting layer. Further development has been driven by empirical optimization strategies and testing of a variety of different architectures. These devices are divided in two categories: standard and inverted. Standard uses TiO2 (compact or mesoporous) to collect the electrons and a small molecule or polymer organic semiconductor for the holes, with record efficiencies of 21% and an open circuit voltage above 1 V; it must be noted that these devices exhibit a kind of electrical instability manifested as slow transient and hysteretic effects that severely affect the final efficiency. The inverted configuration is more similar to organic photovoltaics, exploiting similar materials for the extraction of photogenerated charges. These devices report lower efficiencies respect to standard device but a higher electrical stability which is manifest with stabilized efficiencies and apparently hysteresis-free behaviour.
Negli ultimi cinquant’anni la rapida evoluzione delle tecnologie ha gradualmente sbilanciato l’equilibrio che esiste tra la produzione e il consumo dell’energia. Le risorse tradizionali che vengono sfruttate per la produzione di energia - carbone, petrolio e gas naturali - iniziano ad essere sempre meno sufficienti per soddisfare la richiesta di energia senza rischiare di danneggiare l’ambiente che ci circonda. E’ proprio per questo motivo che le energie rinnovabili attraggono sempre più interessi e attenzioni andandosi a candidare come una potenziale soluzione al fabbisogno energetico. Tra le energie rinnovabili, il fotovoltaico si conferma come una delle tecnologie più promettenti per fornire energia a costi contenuti nel rispetto dell’ambiente. Tuttavia per poter sfruttare appieno il potenziale di questa tecnologia la fisica e i meccanismi di conversione fotovoltaica devono essere studiati nel dettaglio. Tra questi la stabilità delle celle solari ricopre uno degli aspetti fondamentali, dove per stabilità si intendono sia la durata e il tempo di vita dei dispositivi sia la stabilità dei meccanismi elettrici delle celle. In questa tesi viene studiata nel dettaglio la stabilità di due tecnologie emergenti nel settore fotovoltaico: le celle solari polimeriche e le celle solari a base di perovskiti. Nelle celle solari polimeriche capire e comprendere i meccanismi di degrado dei materiali foto attivi permette di sviluppare nuovi materiali in grado di aumentare la durata e l’efficienza delle celle. In generale, il degrado di questi dispositivi è dovuto all’interazione tra la parte ultravioletta della luce e gli agenti atmosferici, in particolare ossigeno e vapore acqueo. Gli effetti del decadimento si riscontrano da un lato nella formazione di stati elettronici che fungono da “trappole” per le cariche fotogenerate diminuendo l’efficienza generale della cella, dall’altro nella modifica chimica dei materiali che porta ad una rottura delle catene polimeriche deteriorando completamente le proprietà ottiche della cella. Studiare e comprendere questi meccanismi è la corretta strada per lo sviluppo di nuovi materiali per celle più efficienti. L’introduzione delle perovskiti ibride ha rappresentato una rivoluzione nel settore fotovoltaico. Questa tipologia di materiali offre il vantaggio sia di essere processabile da soluzioni sia quello di avere un’efficienza confrontabile a quella del silicio cristallino. Inizialmente queste perovskiti erano utilizzate come materiale fotoassorbente in celle solari simili alle dye senistized solar cells (DSSCs). Questi primi dispositivi sfruttavano uno scaffold mesoporoso di diossido di titanio per estrarre gli elettroni. Successivamente, in seguito allo sviluppo empirico delle celle, lo scaffold mesoporoso è stato rimosso in favore di una configurazione planare. Tuttavia, in entrambe le configurazioni, queste celle hanno dimostrato una naturale instabilità elettrica che si manifesta in una forma di isteresi nella determinazione della caratteristica curva corrente/voltaggio. Questo fenomeno rende ambigua la determinazione finale dell’efficienza di questi dispositivi limitandone effettivamente le possibili applicazioni. In questa tesi viene presentata un’indagine completa delle cause e delle conseguenze di questo fenomeno, mostrando una possibile soluzione a questo problema.
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Liu, Jiang. "P3HT:PCBM Bulk Heterojunction Organic Solar Cell : Performance Optimization and Application of Inkjet Printing." Thesis, Linköping University, Department of Science and Technology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-14987.

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Organic solar cells have emerged as an important cheap photovoltaic technology. In this thesis work, a study of P3HT:PCBM heterojunction solar cells was presented. By incorporation of photo-active film slow growth, PEDOT:PSS (Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate)) de-water treatment and application of highly conductive PEDOT:PSS (HC-PEDOT), a maximum PCE (power conversion efficiency) of 4% was achieved.

Inkjet printing technique was on the other hand introduced into fabrication process. The morphological, electrical and optical properties of printed HC-PEDOT were investigated. Fine silver girds with well-designed pattern, combining with a transparent thin film of HC-PEDOT, was inkjet-printed to form the anode of solar cells. A functional device with printed anode and printed photo-active layer was demonstrated, showing the possibility of realizing fully printed organic solar cells.

 

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Yu, Fei. "Graphene-enhanced Polymer Bulk-heterojunction Solar Cells." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439310775.

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Bergqvist, Jonas. "Microstructure and Temperature Stability of APFO-3:PCBM Organic Photovoltaic Blends." Thesis, Linköping University, Biomolecular and Organic Electronics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58559.

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In this thesis, the microstructure of organic photovoltaic APFO-3:PC61BM bulk-heterojunction blends was examined. Earlier studies have focused on the microstructure after spin coating. This thesis aims to give a better insight into microstructural degradation as the films are annealed above the glass transition temperature, Tg, and the mixture approaches thermodynamic equilibrium. Electro- and photoluminescence studies indicate that the polymer and PC61BM are intermixed on a scale shorter than the exciton diffusion length of 10 nm, even when annealed above Tg. The temperature stability of APFO-3:PC61BM was also investigated with respect to the molecular weight of the polymer. The photovoltaic performance of these blends was found to be stable up to temperatures approaching the glass transition temperature, especially if a high molecular-weight APFO-3 grade was used.

 

The crystallization of PC61BM was also investigated. Above Tg, PC61BM crystallization was found to commence, albeit slowly at temperatures close to Tg. At elevated temperatures instead, micrometer sized crystals were observed to form. It was also noted that illumination while annealing APFO-3:PC61BM thin films above Tg affected PC61BM crystallization, the origin of which is so far unclear although chemical degradation could be largely excluded.

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Antoni, Lílian de Oliveira de. "Estudo e caracterização de dispositivos fotovoltaicos orgânicos baseados em heterojunção de P3HT/PCBM e aplicação de materiais plasmônicos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/117624.

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Este trabalho tem como principal objetivo comparar o comportamento fotovoltaico de heterojunções de P3HT/PCBM e heterojunções de P3HT/PCBM contendo nanopartículas de ouro (P3HT/PCBM/Au nanop). Inicialmente foi encontrada a melhor condição para deposição dos filmes de P3HT/PCBM, através do estudo do efeito do solvente, da temperatura e pressão durante a formação do filme de P3HT. Os resultados mostram que a melhor organização estrutural é obtida quando o polímero é disperso em clorobenzeno, e solidificado a temperatura 110°C em condição de baixa pressão. Os materiais foram caracterizados por voltametria cíclica, espectroscopia Uv-vis, espectroscopia no infravermelho, microscopia eletrônica de transmissão e difratometria de raios-x. Os dispositivos montados foram caracterizados por curvas de corrente versus potencial e eficiência de conversão de fóton incidente. Com o objetivo de avaliar o efeito das nanopartículas metálicas na estabilidade estrutural do dispositivo, foram realizadas obtidos espectros de FTIR dos filmes de P3HT na presença e na ausência de nanopartículas de ouro, após diferentes períodos de exposição à luz. Os filmes de P3HT/PCBM/Aunanop apresentaram maior absorção de luz na região do visível que resultou em maior eficiência de geração de fotocorrente quando comparada a P3HT/PCBM. Ainda através dos gráficos de IPCE foi observado um aumento da geração de fotocorrente na mesma região espectral do modo plasmônico. Através destes resultados nós observamos que a presença das nanoparticulas metálicas melhora a geração de fotocorrente, aumentando a XV intensidade de luz absorvida e o aprisionamento da luz dentro da camada fotoativa.
The main goal of this work was to compare the effect of gold nanoparticles on the photovoltaic properties of the P3HT/PCBM heterojunction. Initially we have studied the best condition to obtain the P3HT/PCBM films evaluating the effect of solvent, temperature and pressure during the formation of the film. The results show that the best structural organization is obtained from in chlorobenzene, at 110 oC at low pressure condition. The materials were characterized by cyclic voltammetry, Uv-vis spectroscopy, infrared spectroscopy, transmission electron microscopy and x-ray diffractometry. The assembled devices were characterized by current versus potential curves and incident photon to current efficiency. Aiming to evaluate the effect of gold nanoparticles on the structural stability of the device, we have performed FTIR experiments of the films with and without gold nanoparticles after different exposition periods. The P3HT/PCBM/Au nanop film presented improved optical behavior and enhanced photocurrent generation when compared to P3HT/PCBM, in addition by IPCE we have observed improved generation of photocurrent in the region near the absorption range of the gold nanoparticles. From the results we observe that the presence of gold nanoparticles improve the generation of photocurrent, by increasing light absorption and improving light entrapment in the photoactive film.
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Björström, Svanström Cecilia. "Thin films of polyfluorene:fullerene blends - Morphology and its role in solar cell performance." Doctoral thesis, Karlstad University, Faculty of Technology and Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1243.

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The sun provides us daily with large quantities of energy in the form of light. With the world’s increasing demand of electrical energy the prospect of converting this solar light into electricity is highly tempting. In the strive towards mass-production and low cost solar cells, new types of solar cells are being developed, e.g. solar cells completely based on organic molecules and polymers. These materials offer a promising potential of low cost and large scale manufacturing and have the additional advantage that they can be produced on flexible and light weight substrate which opens for new and innovating application areas, e.g. integration with paper or textiles, or as building materials. In polymer solar cells a combination of two materials are used, an electron donor and an electron acceptor. The three dimensional distribution of the donor and acceptor in the active layer of the device, i.e. the morphology, is known to have larger influence of the solar cell performance. For the optimal morphology there is a trade-off between sometimes conflicting criteria for the various steps of the energy conversion process. The dissociation of photogenerated excitons takes place at an interface between the donor and acceptor materials. Therefore an efficient generation of charges requires a large interface between the two components. However, for charge transport and collection at the electrodes, continuous pathways for the charges to the electrodes are required.

In this thesis, results from morphology studies by atomic force microscopy (AFM) and dynamic secondary ion mass spectrometry (SIMS) of spin-coated blend and bilayer thin films of polyfluorene co-polymers, especially poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-5,5-(4´,7´-di-2-thienyl-2´,1´,3´-benzothiadiazole)] APFO-3, and the fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are presented. It is shown that by varying the blend ratio, the spin.-coating solvent, and/or the substrate, different morphologies can be obtained, e.g. diffuse bilayer structures, spontaneously formed multilayer structures and homogeneous blends. The connection between these different morphologies and the performance of solar cells is also analysed. The results indicate that nano-scale engineering of the morphology in the active layer may be an important factor in the optimization of the performance of polymer solar cells.

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Liu, Feng, Lei Zhang, Yue Zhang, Stefan C. B. Mannsfeld, Thomas P. Russell, and Alejandro L. Briseno. "Interpenetrating morphology based on highly crystalline small molecule and PCBM blends." Royal Society of Chemistry, 2014. https://tud.qucosa.de/id/qucosa%3A36260.

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We report the morphological characterization of triisopropylsilylethynyl-dibenzochrysene (TIPS-DBC:PCBM) blends, a bulk heterojunction (BHJ) solar cell system based on a highly crystalline small molecule donor. We found that processing the blends from a volatile solvent such as chloroform is beneficial in controlling the crystal size and phase separation of the donor–acceptor phases. When a less-volatile solvent such as chlorobenzene is used, large crystalline domains formed, exceeding the length scale suitable for BHJ solar cells. When the BHJ films are thermally annealed, enhanced domain purity is observed for the chloroform processed thin films, which led to an increased short circuit current in the devices.
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Nicolet, Célia. "Synthèse de (co)polymères à base de Poly(3-hexylthiophène) pour le photovoltaïque organique." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14412/document.

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L’optimisation de la morphologie de la couche active est primordiale pour l’augmentation des rendements des cellules solaires photovoltaïques organiques. Nous avons montré l’influence du ratio de matériaux donneur (P3HT) et accepteur (PCBM) d’électrons ainsi que de la masse molaire du P3HT sur la morphologie de la couche active. Afin de contrôler la séparation de phases entre les matériaux donneur et accepteur d’électrons, il est possible d’utiliser des copolymères à blocs afin d’aider la compatibilisation entre le P3HT et le PCBM. Nous avons choisi de synthétiser des copolymères à blocs P3HT-b-polystyrène et des P3HT-b-polyisoprène présentant une certaine compatibilité avec les matériaux de la partie active. L’ajout optimisé de P3HT-b-polyisoprène permet une augmentation de 30% des rendements et de 90% de durée de vie des cellules solaires
Active layer morphology optimization is fundamental to achieve high efficiency in organic photovoltaic solar cells. We showed the influence of the donor (P3HT) and acceptor (PCBM) material ratio and the impact of the P3HT molecular weight on the active layer morphology. We demonstrated the possibility of using well-designed block copolymers to help P3HT and PCBM compatibilization and to control their phase separation. We chose to synthesize P3HT-b-polystyrene and P3HT-b-polyisoprene for which each block is compatible with the active materials. Optimal addition of P3HT-b-polyisoprene enables to get a 30%-improved efficiency and a 90%-enhanced lifetime of the solar cells
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Freisinger, Birger [Verfasser]. "Investigation of P3HT PCBM particle-based solar cells / Birger Freisinger." Mainz : Universitätsbibliothek Mainz, 2013. http://d-nb.info/1036317927/34.

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Aversa, Pierfrancesco. "Primary Defects in Halide Perovskites : Effect on Stability and Performance for Photovoltaic Applications Effect of organic PCBM Electron transport Layers on natural and post-irradiation ageing of optical absorption and emission in methyl ammonium lead triiodide spin –coated on p-i-n Solar Sell Substrates Effect of organic PCBM Electron transport Layers on natural and post-irradiation ageing of optical absorption and emission in triple cation lead mixed halide perovskite spin –coated on p-i-n Solar Sell Substrates Electron Irradiation Induced Ageing Effects on Radiative Recombination Properties of methylammonium lead triiodide layers on p-i-n solar cell substrates Electron Irradiation Induced Ageing Effects on Methylammonium Lead Triiodide Based p-i-n Solar Cells Electron Irradiation Induced Ageing Effects on Radiative Recombination Properties of Quadruple Cation Organic-Inorganic Perovskite Layers." Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX050.

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Ces onze dernières années ont vu apparaitre les pérovskites organiques inorganiques hybrides (HOIPs) comme un passionnant domaine de recherche pour leur application potentielle dans les technologies du photovoltaïque (PV) en raison de leurs exceptionnelles propriétés optoélectroniques et de leur facilité de mise en oeuvre. Cependant, les matériaux HOIPs ont plusieurs inconvénients dont leur manque de stabilité en conditions opérationnelles. Améliorer celle-ci est l'un des plus grands défis à relever avant commercialisation. La formule générale est (A1,A2,A3,A4)Pb(X1,X2)3, où les sites A occupés par une distribution de 1 à 4 cations métalliques/organiques et les sites X par celle d’anions halogénures. Les défauts lacunaires natifs sont considérés comme une cause possible de dégradation des cellules solaires HOIPs. L'objectif de ce travail est de comprendre le rôle des défauts dans la stabilité à long terme des matériaux PV HOIPs. A cette fin, des défauts primaires ont été introduits de manière contrôlée par irradiation avec des électrons de haute énergie (1MeV) dans des lots de couches et cellules solaires (SCs) à base de divers composés HOIPs. Il s'agit notamment du prototype PV HOIPs, MAPbI3 (A1PbX13), et de nouveaux composés mixtes d’halogénures à triple ou quadruple cations, (CsMAFA)Pb(I1-xBrx)3 (A3PbX23) ou (GACsMAFA)Pb(I1-yBry)3 (A4PbX23). Les couches sont fabriquées selon la même procédure que les couches actives SCs et, ensuite, traitées dans des conditions similaires. Pour A1PbX13/A3PbX23, la structure SC est de type p-i-n avec des couches organiques pour le transport des trous et des électrons (HTL/ETL). Les couches sont déposées sur le substrat verre/ITO/HTL (PEDOT:PSS) sans ou avec couche supérieure ETL (PCBM). Pour A4PbX23, la structure SC est de type n-i-p avec des couches ETL inorganiques (TiO2) et HTL organiques (Spiro-OMeTAD). Les couches sont directement déposées sur du verre.La spectroscopie d'annihilation de positons donne une évidence directe de l'existence de défauts lacunaires natifs et induits par irradiation dans chaque composé. Les spectres d’absorbance en fonction de l’énergie montrent que le vieillissement naturel et après irradiation génère différentes populations de défauts dans chaque composé. De plus, celles-ci pour A1PbX13 et A3PbX23 diffèrent selon l'absence ou la présence de la couche supérieure ETL. Les populations de défauts évoluent pendant au moins 3 mois. Le vieillissement modifie (i) la bande interdite, (ii) les queues de bande de conduction/valence et (iii) l'absorption optique via des niveaux électroniques profonds. Les effets d’illumination sous laser varient aussi en fonction du vieillissement. L’asymétrie des pics de photoluminescence (PL) dans chaque composé sous illumination laser continue reflète une superposition de raies d’émission gaussiennes à énergie, FWHM et hauteur évoluant avec le temps d'illumination. Les transitions d'émission impliquent des niveaux électroniques localisés peu profonds dans A3PbX23/A4PbX23 et résonnants dans A1PbX13. De tels effets durent au moins 3 mois dans A4PbX23. Ces niveaux électroniques sont attribués à des populations de défauts spécifiquement induits par illumination. Le vieillissement naturel et après irradiation donne des spectres PL à décroissance temporelle résolue en une ou deux exponentielles. Le nombre et la durée de vie sont fortement influencés par l’irradiation initiale et la composition. Une amélioration frappante du fonctionnement PV pour le type SC p-i-n est induite par le vieillissement dû à l'irradiation. Le rendement quantique externe et les performances PVs ont des valeurs plus élevées pour l’état irradié que de référence durant 6 à 12 mois de vieillissement. Cela prouve que l'ingénierie des défauts par irradiation d'électrons à haute énergie a le potentiel de fournir des voies de traitement innovantes pour améliorer la stabilité à long terme des performances photovoltaïques HOIPs
During the last eleven years, Hybrid Organic Inorganic Perovskites (HOIPs) materials have emerged as an exciting topic of research for potential application in solar cell technologies due to their outstanding optoelectronic properties and processing advantages. However, HOIPs materials suffer from several drawbacks with, in peculiar, their lack of stability under operational conditions (light, bias, environment…). To improve this stability is one of the biggest challenges to be addressed before commercialization. The general formula for HOIPs is (A1,A2,A3,A4)Pb(X1,X2)3, where the A sites can be occupied by a distribution of 1 to 4 metallic/organic cations and X sites with halide anions. The role of native vacancy defects has been questioned as a possible cause for HOIPs solar cells degradation. The aim of this work is to understand the defect role in long term stability of HOIPs materials for photovoltaics. For this reason, primary defects were introduced in a controlled way via high energy electron irradiation (1MeV) in sets of layers and solar cells (SCs) fabricated using various HOIPs compounds. Those include the photovoltaic HOIPs prototype, MAPbI3 (A1PbX13), and emergent triple or quadruple cation mixed halide HOIPs, (CsMAFA)Pb(I1-xBrx)3 (A3PbX23) or (GACsMAFA)Pb(I1-yBry)3 (A4PbX23). The HOIPs layers are fabricated according to the same procedure as the HOIPs active SC layers and, subsequently, treated in similar conditions. For A1PbX13 and A3PbX23, the solar cells are of the p-i-n structure with organic hole and electron transport layer (HTL/ETL). The HOIPs layers are deposited on the glass/ITO/HTL (PEDOT:PSS) substrate without or with the top ETL layer (PCBM). For A4PbX23, the solar cells are of the n-i-p type with inorganic ETL (TiO2) and organic HTL (Spiro-OMeTAD) layers. The layers are directly deposited on glass without the ETL layer.Positron Annihilation Spectroscopy (PAS) gives direct evidence for native vacancy-type defects and irradiation induced ones in layers of each HOIP compound. The energy dependence of absorbance shows that natural and after irradiation ageing generates different defect populations in each HOIP compound. These populations strikingly also differ depending on the absence or presence of the top ETL layer for the A1PbX13 and A3PbX23 compounds. The defect populations evolve over ageing duration as long as 3 months. The prominent effects of ageing include (i) band gap modification, (ii) tailing of conduction/valence band extrema and (iii) optical absorption via deep subgap electronic levels. Illumination effects under laser also vary with ageing for each HOIP compound. Asymmetric photoluminescence (PL) peaks in each compound under continuous laser illumination reflect that radiative emission involves Gaussian emission rays with energy, FWHM and height evolving with illumination time. The emission transitions involve shallow localized electronic levels in A3PbX23 and A4PbX23 and resonant ones in A1PbX13. These electronic levels are attributed to specifically illumination-induced defect populations. Natural and after irradiation ageing result in PL decay lifetime spectra resolved into one or two exponential decay components. The decay components number and lifetime are strongly affected by the initial production of irradiation defects and HOIPs composition. Such effects last over 3 months at least in A4PbX23. The p-i-n solar cells exhibit most striking irradiation ageing induced photovoltaics performance. The External Quantum Efficiency (EQE versus photon energy) and the photovoltaic performance (I-V under illumination) of the irradiated solar cells have higher values than those in the reference SCs after 6 to 12 months of ageing. This gives evidence that defect engineering via high energy electron irradiation has a potential for providing innovative processing pathways to enhance the long-term stability of HOIPs photovoltaic performance
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Book chapters on the topic "PCBM Solar Cell"

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Oak, Chinmay N., and S. Sundar Kumar Iyer. "Effect of Pulsed Electric Field Annealing on P3HT: PCBM Inverted Solar Cell Structure." In Springer Proceedings in Physics, 117–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-97604-4_19.

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Iqbal, Mohammad Asif, and Virendra Sangtani. "Investigation and Assessment of TCAD-Based Modeled and Simulated PPV/PCBM Bulk Heterojunction Solar Cells." In Algorithms for Intelligent Systems, 279–87. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4103-9_24.

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Conference papers on the topic "PCBM Solar Cell"

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Nolasco, Jairo C., R. Cabre, L. F. Marsal, Roberto Pacios, Christoph Waldauf, Marios Neophytou, Emilio Palomares, and J. Pallares. "Conduction mechanisms of P3HT: PCBM solar cell." In 2009 Spanish Conference on Electron Devices (CDE). IEEE, 2009. http://dx.doi.org/10.1109/sced.2009.4800517.

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Sharma, S. S., G. D. Sharma, Subodh, Sarla Sharma, and Y. K. Vijay. "Tetrahydroquinoxaline Based Small Molecule: PCBM Bulk Heterojunction Solar Cell." In THE 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN NUCLEAR SCIENCE AND ENGINEERING 2009‐ICANSE 2009. American Institute of Physics, 2011. http://dx.doi.org/10.1063/1.3605932.

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Omer, Bushra Mohamed, Ahmed Khogali, and Almantas Pivrikas. "AMPS-1D modeling of P3HT/PCBM bulk-heterojunction solar cell." In 2011 37th IEEE Photovoltaic Specialists Conference (PVSC). IEEE, 2011. http://dx.doi.org/10.1109/pvsc.2011.6186059.

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Hu, Jindi J., Xin J. Li, Jie J. Huang, and Xin J. Yao. "PCBM as interfacial layer in perovskite solar cell for efficient charge extraction." In Second International Conference on Optoelectronic Science and Materials (ICOSM 2020), edited by Pei Wang and Yuan Lu. SPIE, 2020. http://dx.doi.org/10.1117/12.2585617.

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Bahrami, Zahra, Alireza Salehi, and Alireza Mahdlu Eyvaraghi. "AMPS-1D Modelling of P3HT/PCBM Bilayer and BHJ Organic Solar Cell." In 2019 27th Iranian Conference on Electrical Engineering (ICEE). IEEE, 2019. http://dx.doi.org/10.1109/iraniancee.2019.8786641.

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Li, Weimin, Jinchuan Guo, Xiuquan Sun, and Bin Zhou. "Improvement of power efficiency of polymer solar cell based on P3HT: PCBM blends." In Photonics Asia 2007, edited by Yuwen Zhao, Nuofu Chen, Vladimir M. Andreev, Jai Singh, Jinmin Li, Ling Wu, Yubo Fan, Yong-Hang Zhang, and Michael E. Coltrin. SPIE, 2007. http://dx.doi.org/10.1117/12.756572.

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Bharti, Vishal, Suresh Chand, and Viresh Dutta. "Realization of highly efficient polymer solar cell based on PBDTTT-EFT and [71]PCBM." In DAE SOLID STATE PHYSICS SYMPOSIUM 2017. Author(s), 2018. http://dx.doi.org/10.1063/1.5029215.

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Salim, Muath Bani, and Reza Nekovei. "Designing of PCBM Derivative using Pyridazine Compound for More Efficient Bulk Heterojunction Organic Solar Cell." In 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC). IEEE, 2021. http://dx.doi.org/10.1109/pvsc43889.2021.9519059.

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Das, Sandip. "Improved Efficiency of non-toxic Cu3BiS3 Thin Film Solar Cell Employing PCBM Electron Transport Layer." In 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC). IEEE, 2022. http://dx.doi.org/10.1109/pvsc48317.2022.9938510.

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Chowdhury, Ashraful Haider, and Sharif Mohammad Mominuzzaman. "Photovoltaic characteristics of single wall carbon nanotube (CNT): PCBM organic solar cell-effect of CNT chirality variation." In 2015 International Conference on Electrical & Electronic Engineering (ICEEE). IEEE, 2015. http://dx.doi.org/10.1109/ceee.2015.7428247.

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