Relevant bibliographies by topics / Bio-solar cell

Contents

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

Academic literature on the topic 'Bio-solar cell'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "Bio-solar cell"

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Cholleti, Eshwar Reddy, and Md Akhtar khan. "Bio-Synthetic Affordable Nano Solar cell." Materials Today: Proceedings 4, no. 8 (2017): 7694–703. http://dx.doi.org/10.1016/j.matpr.2017.07.104.

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Yaghoubi, Houman, Michael Schaefer, Shayan Yaghoubi, Daniel Jun, Rudy Schlaf, J. Thomas Beatty, and Arash Takshi. "A ZnO nanowire bio-hybrid solar cell." Nanotechnology 28, no. 5 (December 28, 2016): 054006. http://dx.doi.org/10.1088/1361-6528/28/5/054006.

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Kadarisman, Nur, Fitria Ayu Sulistiani, Wipsar Sunu Brams Dwandaru, Rhyko Irawan Wisnuwijaya, and Agus Sugiarto. "AUDIO BIO HARMONIC WITH WT5001 SMARTCHIPUSING SOLAR CELL." Jurnal Fisika dan Aplikasinya 16, no. 2 (June 20, 2020): 71. http://dx.doi.org/10.12962/j24604682.v16i2.3750.

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Ko, Sung Cheon, Hyun Jeong Lee, Sun Young Choi, Jong-il Choi, and Han Min Woo. "Bio-solar cell factories for photosynthetic isoprenoids production." Planta 249, no. 1 (August 4, 2018): 181–93. http://dx.doi.org/10.1007/s00425-018-2969-8.

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Jin, Liguo, Jin Zhai, Liping Heng, Tianxin Wei, Liping Wen, Lei Jiang, Xiaoxu Zhao, and Xianyou Zhang. "Bio-inspired multi-scale structures in dye-sensitized solar cell." Journal of Photochemistry and Photobiology C: Photochemistry Reviews 10, no. 4 (December 2009): 149–58. http://dx.doi.org/10.1016/j.jphotochemrev.2009.10.002.

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Adachi, Taiki, Kunishige Kataoka, Yuki Kitazumi, Osamu Shirai, and Kenji Kano. "A Bio-solar Cell with Thylakoid Membranes and Bilirubin Oxidase." Chemistry Letters 48, no. 7 (July 5, 2019): 686–89. http://dx.doi.org/10.1246/cl.190176.

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Rasmussen, Michelle, Alexander Shrier, and Shelley D. Minteer. "High performance thylakoid bio-solar cell using laccase enzymatic biocathodes." Physical Chemistry Chemical Physics 15, no. 23 (2013): 9062. http://dx.doi.org/10.1039/c3cp51813b.

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Panda, Manas K., Kalliopi Ladomenou, and Athanassios G. Coutsolelos. "Porphyrins in bio-inspired transformations: Light-harvesting to solar cell." Coordination Chemistry Reviews 256, no. 21-22 (November 2012): 2601–27. http://dx.doi.org/10.1016/j.ccr.2012.04.041.

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Lee, Hankeun, and Seokheun Choi. "A micro-sized bio-solar cell for self-sustaining power generation." Lab on a Chip 15, no. 2 (2015): 391–98. http://dx.doi.org/10.1039/c4lc01069h.

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Rasmussen, Michelle, and Shelley D. Minteer. "Thylakoid direct photobioelectrocatalysis: utilizing stroma thylakoids to improve bio-solar cell performance." Physical Chemistry Chemical Physics 16, no. 32 (July 14, 2014): 17327. http://dx.doi.org/10.1039/c4cp02754j.

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Dissertations / Theses on the topic "Bio-solar cell"

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Jullesson, David. "Wiring liposomes and chloroplasts to the grid with an electronic polymer." Thesis, Linköpings universitet, Biomolekylär och Organisk Elektronik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-97517.

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We present a novel thylakoid based bio-solar cell capable of generating a photoelectric current of    0.7 µA/cm2. We have introduced an electro conductive polymer, PEDOT-S, to the thylakoid membrane. PEDOT-S intervenes in the photosynthesis, captures electrons from the electron transport chain and transfers them directly across the thylakoid membrane, thus generating a current. The incorporation of the electro conductive polymer into the thylakoid membrane is therefore vital for the function of the bio-solar cell. A liposomal model system based on liposomes formed by oleic acid was used to develop and study the incorporation of PEDOT-S to fatty acid membranes. The liposomes allow for a more controllable and easily manipulated system compared to the thylakoid membrane. In the model system, PEDOT-S could successfully be incorporated to the membrane, and the developed methods were applied to the real system of thylakoid membranes. We found that a bio-compatible electrolyte and redox couple was required for this system to function. The final thylakoid based bio-solar cell was evaluated according to performance and reproducibility. We found that this bio-solar system can generate a low but reproducible current.
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Eskandari, Azin. "A preliminary theoretical and experimental study of a photo-electrochemical cell for solar hydrogen production." Thesis, Université Clermont Auvergne‎ (2017-2020), 2019. http://www.theses.fr/2019CLFAC104.

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Afin de relever le défi énergétique et climatique du 21ième siècle qui s’annonce, une solution consiste, pour valoriser la ressource solaire, à mettre au point des procédés de production de vecteurs énergétiques stockables par photosynthèse artificielle permettant la synthèse de carburants solaires, en particulier l’hydrogène. La compréhension de ses procédés et l’obtention de performances cinétiques et énergétiques élevées nécessitent le développement de modèles de connaissance génériques, robustes et prédictifs considérant le transfert de rayonnement comme processus physique contrôlant le procédé à plusieurs échelles mais aussi les différents autres phénomènes intervenant dans la structure ou la réification du modèle.Dans le cadre de ce travail de doctorat, le procédé photo-réactif au cœur de l’étude était la cellule photo-électrochimique. D’un fonctionnement plus complexe que le simple photoréacteur, avec une photo-anode et une (photo)cathode, la cellule photo-électrochimique dissocie spatialement les étapes d’oxydation et de réduction. En se basant à la fois sur la littérature existante (essentiellement dans le domaine de l’électrochimie) et en déployant les outils développés par l’équipe de recherche sur le transfert de rayonnement et la formulation du couplage thermocinétique, il a été possible d’établir des indicateurs de performance des cellules photo-électrochimiques.En parallèle de l’établissement de ce modèle, une démarche expérimentale a été entreprise en se basant tout d’abord sur une cellule commerciale de type Grätzel (DS-PEC) indiquant les tendances générales de tels convertisseurs de l’énergie des photons avec en particulier une chute de l’efficacité énergétique en fonction de la densité incidente de flux de photons. Un dispositif expérimental modulable (Minucell) a aussi été développé et validé afin de caractériser des photo-anodes de différentes compositions comme des électrodes de TiO2 imprégnées de chromophore pour un fonctionnement en cellule de Grätzel ou bien des électrodes d’hématite Fe2O3 (SC-PEC) où le semiconducteur joue à la fois les fonctions d’absorption des photons et de conduction des porteurs de charges. Surtout, le dispositif Minucell a permis de tester, caractériser et modéliser le comportement d’une cellule photo-électrochimique de type bio-inspiré pour la production d’H2 utilisant à la photo-anode un catalyseur moléculaire Ru-RuCat (développé par ICMMO Orsay/CEA Saclay) et à la cathode un catalyseur CoTAA (développé par LCEMCA Brest). Minucell a été utilisé pour caractériser chaque élément constitutif d’une cellule photo-électrochimique puis la cellule dans son ensemble, confirmant les tendances et observations obtenues sur les efficacités énergétiques.Ce travail préliminaire ouvre de très nombreuses perspectives de recherche, il pose des bases communes entre électrochimie et génie des systèmes photo-réactifs et donne des pistes quant à la conception et l’optimisation cinétique et énergétique des cellules photo-électrochimiques pour la production d’hydrogène et de carburants solaires
In order to meet the energy and climate challenge of the coming 21st century, one solution consists of developing processes for producing storable energy carriers by artificial photosynthesis to synthesize solar fuels, in particular hydrogen, in order to valorize the solar resource. The understanding of these processes and the achievement of high kinetic and energetic performances require the development of generic, robust and predictive knowledge models considering radiative transfer as a physical process controlling the process at several scales but also including the various other phenomena involved in the structure or reification of the model.In this PhD work, the photo-reactive process at the heart of the study was the photo-electrochemical cell. More complex than the simple photoreactor, with a photo-anode and a (photo)cathode, the photo-electrochemical cell spatially dissociates the oxidation and reduction steps. Based both on the existing literature (mainly in the field of electrochemistry) and by deploying the tools developed by the research team on radiative transfer and thermokinetic coupling formulation, it was possible to establish performance indicators of photo-electrochemical cells.In parallel to the establishment of this model, an experimental approach was undertaken based first on a commercial Grätzel-type cell (DS-PEC) indicating the general trends of such photon energy converters with in particular a drop in energy efficiency as a function of the incident photon flux density. A modular experimental device (Minucell) has also been developed and validated in order to characterize photo-anodes of different compositions such as chromophore impregnated TiO2 electrodes for operation in Grätzel cells or Fe2O3 hematite electrodes (SC-PEC) where the semiconductor plays both the functions of photon absorption and charge carrier conduction. Above all, the Minucell device allowed to test, characterize and model the behavior of a bio-inspired photo-electrochemical cell for H2 production using at the photo-anode a Ru-RuCat molecular catalyst (developed by ICMMO Orsay/CEA Saclay) and at the cathode a CoTAA catalyst (developed by LCEMCA Brest). Minucell was used to characterize each constituent element of a photo-electrochemical cell and then the cell as a whole confirming the trends and observations obtained on energy efficiencies.This preliminary work opens up a wide range of research prospects, lays common ground between electrochemistry and photo-reactive systems engineering, and provides insights into the design and kinetic and energy optimization of photo-electrochemical cells for the production of hydrogen and solar fuels
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Yaghoubi, Houman. "Bio-Photoelectrochemical Solar Cells Incorporating Reaction Center and Reaction Center Plus Light Harvesting Complexes." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5803.

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Harvesting solar energy can potentially be a promising solution to the energy crisis now and in the future. However, material and processing costs continue to be the most important limitations for the commercial devices. A key solution to these problems might lie within the development of bio-hybrid solar cells that seeks to mimic photosynthesis to harvest solar energy and to take advantage of the low material costs, negative carbon footprint, and material abundance. The bio-photoelectrochemical cell technologies exploit biomimetic means of energy conversion by utilizing plant-derived photosystems which can be inexpensive and ultimately the most sustainable alternative. Plants and photosynthetic bacteria harvest light, through special proteins called reaction centers (RCs), with high efficiency and convert it into electrochemical energy. In theory, photosynthetic RCs can be used in a device to harvest solar energy and generate 1.1 V open circuit voltage and ~1 mA cm-2 short circuit photocurrent. Considering the nearly perfect quantum yield of photo-induced charge separation, efficiency of a protein-based solar cell might exceed 20%. In practice, the efficiency of fabricated devices has been limited mainly due to the challenges in the electron transfer between the protein complex and the device electrodes as well as limited light absorption. The overarching goal of this work is to increase the power conversion efficiency in protein-based solar cells by addressing those issues (i.e. electron transfer and light absorption). This work presents several approaches to increase the charge transfer rate between the photosynthetic RC and underlying electrode as well as increasing the light absorption to eventually enhance the external quantum efficiency (EQE) of bio-hybrid solar cells. The first approach is to decrease the electron transfer distance between one of the redox active sites in the RC and the underlying electrode by direct attachment of the of protein complex onto Au electrodes via surface exposed cysteine residues. This resulted in photocurrent densities as large as ~600 nA cm-2 while still the incident photon to generated electron quantum efficiency was as low as %3 × 10-4. 2- The second approach is to immobilize wild type RCs of Rhodobacter sphaeroides on the surface of a Au underlying electrode using self-assembled monolayers of carboxylic acid terminated oligomers and cytochrome c charge mediating layers, with a preferential orientation from the primary electron donor site. This approach resulted in EQE of up to 0.06%, which showed 200 times efficiency improvement comparing to the first approach. In the third approach, instead of isolated protein complexes, RCs plus light harvesting (LH) complexes were employed for a better photon absorption. Direct attachment of RC-LH1 complexes on Au working electrodes, resulted in 0.21% EQE which showed 3.5 times efficiency improvement over the second approach (700 times higher than the first approach). The main impact of this work is the harnessing of biological RCs for efficient energy harvesting in man-made structures. Specifically, the results in this work will advance the application of RCs in devices for energy harvesting and will enable a better understanding of bio and nanomaterial interfaces, thereby advancing the application of biological materials in electronic devices. At the end, this work offers general guidelines that can serve to improve the performance of bio-hybrid solar cells.
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Silva, Maria do Socorro de Paula. "SupressÃo de LuminescÃncia de Corantes CatiÃnicos por Complexo de RutÃnio e sua Potencial AplicaÃÃo em CÃlulas Solares Fotosensibilizadas." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11332.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico
Complexos de bipiridinas de rutÃnio sÃo bastante estudados na literatura por apresentarem propriedades de interesse em diversas Ãreas como estudos fotoquÃmicos e fotofÃsicos, aplicaÃÃo em sistemas biolÃgicos e como fotosensibilizadores em cÃlulas solares. No presente trabalho, os complexos do tipo cis-[Ru(bpy)(dcbH2)(L)Cl], onde L = Azul do Nilo (NB), Azul de Toluidina (TBO), 9-Aminoacridina (9AA), Azure B (AB) e Violeta de Cresila (VC) foram sintetizados e caracterizados por tÃcnicas espectroscÃpicas e eletroquÃmica para aplicaÃÃo em cÃlulas solares sensibilizadas por corante (DSCs). AlÃm destes, o complexo cis-[Ru(dcbH2)(bpy)(TCNE)Cl] (Ru-TCNE) tambÃm foi testado como sensibilizador em DSC. Estes compostos apresentaram bandas de transferÃncia de carga do tipo MLCT na regiÃo do visÃvel e potenciais redox termodinamicamente favorÃveis para as reaÃÃes de transferÃncia de carga que ocorrem no dispositivo fotoeletroquÃmico. A adsorÃÃo quÃmica dos complexos sensibilizadores na superfÃcie do TiO2 foi evidenciada pelo deslocamento das bandas de MLCT para regiÃes de menor energia quando comparadas aos espectros em soluÃÃo. Os desempenhos fotovoltaicos dos complexos como sensibilizadores em DSC foram avaliados atravÃs das curvas corrente versus potencial, obtidas em condiÃÃes padrÃo AM 1,5. As DSCs contendo os sensibilizadores Ru-TBO e Ru-AB apresentaram os menores desempenhos fotovoltaicos com eficiÃncia global de 0,02 e 0,06%, respectivamente. JÃ as cÃlulas solares sensibilizadas pelos corantes Ru-NB e Ru-VC obtiveram um rendimento de 0,11% com baixos valores de eficiÃncia de incidÃncia de conversÃo de fÃtons a corrente, IPCE. Os melhores resultados foram para as cÃlulas contendo os corantes Ru-9AA e Ru-TCNE, as quais apresentaram rendimentos de 0,54 e 2,01%, respectivamente, com valores de IPCE iguais a 10% para Ru-9AA e 48% para Ru-TCNE. Todos os complexos apresentaram eficiÃncia global de conversÃo de energia solar em elÃtrica inferiores ao complexo padrÃo N3.
Bipyridines ruthenium complexes are widely studied in the literature for presenting interesting properties in various fields such as photochemical and photophysical studies, applications in biological systems and as photosensitizers in solar cells. In this work, the complexes of the type cis-[Ru(bpy)(dcbH2)(L)Cl], where L = Nile blue (NB), Toluidine blue (TBO), 9-aminoacridine (9AA), Azure B (AB) and Cresyl Violet (VC) were synthesized and characterized by spectroscopic and electrochemical techniques for application in dye-sensitized solar cells (DSC). In addition, the complex cis-[Ru(dcbH2)(bpy)(TCNE)Cl] (Ru-TCNE) was also tested as a sensitizer DSC. These compounds showed bands of charge transfer type MLCT in the visible region and thermodynamically favorable redox potentials for the charge transfer reactions which occur in the photoelectrochemical device. The adsorption of the chemical sensitizers complexes on the surface of TiO2 was evidenced by displacement of MLCT bands to lower-energy when compared to the spectra in solution. The photovoltaic performances of the complexes as sensitizers in DSC were evaluated through current versus potential curves obtained in standard AM 1.5 conditions. The DSC sensitizers containing Ru-TBO and Ru-AB had the lowest overall efficiency with photovoltaic performances of 0.02 and 0.06%, respectively. As for the dye-sensitized solar cells by Ru-NB and Ru-VC obtained a yield of 0.11% with low efficiency values of incident conversion of photon to current, IPCE. The best results were for cells containing the dyes Ru-9AA and Ru-TCNE, with energy conversion efficiency of 0.54 and 2.01%, respectively, with IPCE values equal to 10% for Ru-9AA and 48% for Ru-TCNE moieties. All complexes showed overall efficiency of converting solar energy into electricity below the N3 complex pattern.
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Chen, Yi-Chin, and 陳怡親. "Synthesis and Characterizations of YVO4:Bi3+,Eu3+ Nanophosphors for Bio-imaging and Solar Cell Applications." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/15853784983127812105.

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博士
國立交通大學
應用化學系碩博士班
101
In this study, a series of water-soluble YVO4:Bi3+,Eu3+ nanophosphors (NPs), with surfaces functionalized by a branch polyethylenimine (BPEI) polymer, has been synthesized via a facile one-pot hydrothermal method. The crystal morphology can be well controlled by tuning the reaction temperature, pH value and molecular weight of capping agent BPEI. The BPEI-coated YVO4:Bi3+,Eu3+ NPs with high crystallinity show broad band excitation in the 250 to 400 nm near ultraviolet (NUV) region and exhibit a sharp-line emission band centered at 619 nm under the excitation of 350 nm. The folic acid (FA) and epidermal growth factor (EGF) were attached on the BPEI-coated YVO4:Bi3+,Eu3+ NPs and exhibited effective positioning of fluorescent nanophosphors toward the targeted folate-receptor over-expressed HeLa cells or EGFR over-expressed A431 cells with low cytoxicity, respectively. These results demonstrate that the ligand-functionalized BPEI-coated YVO4:Bi3+,Eu3+ NPs show great potential as a new generation biological luminescent probe for bio-imaging applications. For solar cell application, the c-Si solar cells showed an enhancement of 4 % in short-circuit current density and approximately 0.7 % in power conversion efficiency when coated with BPEI-coated YVO4:Bi3+,Eu3+ NPs on the textured cell surface. The current experiments conclude that the BPEI-coated YVO4:Bi3+,Eu3+ NPs can not only act as luminescent down-shifting centers in the UV region but also serve as an antireflection coating for improving the power conversion efficiency of the c-Si solar cell.
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Salgado, Shehan. "Graphene Encapsulation for Cells: A Bio-Sensing and Device Platform." Thesis, 2014. http://hdl.handle.net/10012/8391.

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The generation of new nanoscale fabrication techniques is both novel and necessary for the generation of new devices and new materials. Graphene, a heavily studied and versatile material, provides new avenues to generate these techniques. Graphene’s 2-dimensional form remains both robust and uncommonly manipulable. In this project we show that graphene can be combined with the yeast cell, Saccharomyces cerevisiae, arguably the most studied and utilized organism on the planet, to generate these new techniques and devices. Graphene oxide will be used to encapsulate yeast cells and we report on the development of a method to electrically read the behaviour of these yeast cells. The advantage of an encapsulation process for a cell sensor is the ability to create a system that can electrically show both changes in ion flow into and out of the cell and mechanical changes in the cell surface. Since the graphene sheets are mechanically linked to the surface of the cell, stresses imparted to the sheets by changes in the cell wall or cell size would also be detectable. The development process for the encapsulation will be refined to eradicate excess gold on the yeast cells as well as to minimize the amount of stray, unattached graphene in the samples. The graphene oxide encapsulation process will also be shown to generate a robust substrate for material synthesis. With regards to cell sensing applications, sources of noise will be examined and refinements to the device setup and testing apparatus explored in order to magnify the relevant electrical signal. The spherical topography of an encapsulated yeast cell will be shown to be an advantageous substrate for material growth. Zinc oxide, as a sample material being investigated for its own applications for photovoltaics, will be grown on these substrates. The spherical nature of the encapsulated cell allows for radial material growth and a larger photo-active area resulting in a device with increased efficiency over a planar complement. The zinc oxide nanorods are grown via an electrochemical growth process which also reduces the graphene oxide sheets to electrochemically reduced graphene. XRD analysis confirms that the material synthesized is infact zinc oxide. The nanorods synthesized are 200nm to 400nm in width and 1µm in length. The increase efficiency of the non-planar device and the effectiveness of the encapsulated cell as a growth substrate indicate encapsulated cells as a research avenue with significant potential.
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(9751112), Elena A. Robles Molina. "EVALUATIONS ON ENZYMATIC EPOXIDATION, EFFICIENCY AND DECAY." Thesis, 2020.

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The potential use of enzymes in industrial synthesis of epoxidized soybean oil has been limited through the high cost of the enzyme catalyst, in this work we evaluate the effectiveness of chemo enzymatic epoxidation of high oleic soybean oil (HOSBO) using lipase B from Candida antarctica (CALB) on immobilization support Immobead 150 and H2O2 in a solvent-free system. Additionally, we evaluated the production decay rates for hydrolytic activity and epoxide product formation over consecutive batches to determine half-life of the enzyme catalyst.

Batch epoxidation of HOSBO using CALB on 4wt% loading shows yields higher than 90% after 12 hrs. of reaction, and with a correlation to the consumption of double bonds suggesting that the reaction is selective and limiting side product reactions. Non-selective hydrolysis of oil was not found beyond the initial hydrolysis degree of raw HOSBO. Evaluations of decay given by epoxide product formation and released free fatty acids shows a half-life of the enzyme catalyst on these activities is of 22 ad 25 hrs. respectively. Finally, we evaluated the physical parameters influencing this decay, and found that H2O2 presence is the most important parameter of enzyme inactivation with no significant effect from its slowed addition. We propose a new reactor configuration for the analysis of the specific steps on epoxide formation through peracid intermediates.

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Book chapters on the topic "Bio-solar cell"

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Agarwal, Pooja, Mohd Yusuf, Shafat Ahmad Khan, and Lalit Prasad. "Bio-Colorants as Photosensitizers for Dye Sensitized Solar Cell (DSSC)." In Handbook of Renewable Materials for Coloration and Finishing, 279–300. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119407850.ch12.

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Sharma, Ashutosh, Akash Saxena, Shalini Shekhawat, Rajesh Kumar, and Akhilesh Mathur. "Solar Cell Parameter Extraction by Using Harris Hawks Optimization Algorithm." In Bio-inspired Neurocomputing, 349–79. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5495-7_20.

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Chen, Sheng, Meng Wang, Changyou Shao, and Feng Xu. "Nanocellulose-based Materials for the Solar Cell, Wearable Sensors, and Supercapacitors." In Sustainability of Biomass through Bio-based Chemistry, 61–89. First edition. | Boca Raton : CRC Press, 2021. | Series:: CRC Press, 2021. http://dx.doi.org/10.1201/9780429347993-3.

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Vicente, António T., Andreia Araújo, Diana Gaspar, Lídia Santos, Ana C. Marques, Manuel J. Mendes, Luís Pereira, Elvira Fortunato, and Rodrigo Martins. "Optoelectronics and Bio Devices on Paper Powered by Solar Cells." In Nanostructured Solar Cells. InTech, 2017. http://dx.doi.org/10.5772/66695.

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Conference papers on the topic "Bio-solar cell"

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Lee, H., and S. Choi. "A MICROFABRICATED BIO-SOLAR CELL FOR SELF-SUSTAINABLE FIELD APPLICATIONS." In 2014 Solid-State, Actuators, and Microsystems Workshop. San Diego: Transducer Research Foundation, 2014. http://dx.doi.org/10.31438/trf.hh2014.69.

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Chandra, Bhupesh, Joshua T. Kace, Yuhao Sun, S. C. Barton, and James Hone. "Growth of Carbon Nanotubes on Carbon Toray Paper for Bio-Fuel Cell Applications." In ASME 2007 2nd Energy Nanotechnology International Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/enic2007-45038.

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In recent years carbon nanotubes have emerged as excellent materials for applications in which high surface area is required e.g. gas sensing, hydrogen storage, solar cells etc. Ultra-high surface to volume ratio is also a desirable property in the applications requiring enhanced catalytic activity where these high surface area materials can act as catalyst supports. One of the fastest developing areas needing such materials is fuel-cell. Here we investigate the process through which carbon nanotubes can be manufactured specifically to be used to increase the surface area of a carbon paper (Toray™). This carbon support is used in bio-catalytic fuel cell as an electrode to support enzyme which catalyzes the redox reaction. Deposition of nanotubes on these carbon fibers can result in great enhancement in the overall surface area to support the enzyme, which increases the reaction rate inside the fuel cell. The present paper describes a method to achieve ultra-thick growth of multiwall carbon nanotubes (MWNT) on a carbon Toray™ paper using a joule heating process and gas-phase catalyst. Using this method, we are able to achieve rapid, high-density, and uniform MWNT growth. This method is also potentially scalable toward larger-scale production.
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Real, Daniel, and Nico Hotz. "Novel Non-Concentrated Solar Collector for Solar-Powered Chemical Reactions." In ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/es2013-18382.

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The purpose of this study is the proof that non-concentrating solar-thermal collectors can supply the thermal energy needed to power endothermic chemical reactions such as steam reforming of alcoholic (bio-) fuels. Traditional steam reformers require the combustion of up to 50% of the primary fuel to enable the endothermic reforming reaction. Our goal is to use a selective solar absorber coating on top of a collector-reactor surrounded by vacuum insulation. For methanol reforming, a reaction temperature of 220–250°C is required for effective methanol-to-hydrogen conversion. A multilayer absorber coating (TiNOX) is used, as well as a turbomolecular pump to reach ultra-high. The collector-reactor is made of copper tubes and plates and a Cu/ZnO/Al2O3 catalyst is integrated in a porous ceramic structure towards the end of the reactor tube. The device is tested under 1000 W/m2 solar irradiation (using an ABB class solar simulator, air mass 1.5). Numerical and experimental results show that convective and conductive heat losses are eliminated at vacuum pressures of <10−4 Torr. By reducing radiative losses through chemical polishing of the non-absorbing surfaces, the methanol-water mixture can be effectively heated to 240–250°C and converted to hydrogen-rich gas mixture. For liquid methanol-water inlet flow rates up to 1 ml/min per m2 of solar collector area can be converted to hydrogen with a methanol conversion rate above 90%. This study will present the design and fabrication of the solar collector-reactor, its testing and optimization, and its integration into an entire hydrogen-fed Polymer Electrolyte Membrane fuel cell system.
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4

Fujii, Takuya, Takeru Okada, Mohd Erman Syazwan, Taiga Isoda, Hirotaka Endo, Mohammad Maksudur Rahman, Kohei Ito, and Seiji Samukawa. "Germanium nano disk array fabrication by combination of bio template and neutral beam etching for solar cell application." In 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC). IEEE, 2014. http://dx.doi.org/10.1109/pvsc.2014.6925090.

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5

Wei, X., W. Yang, and S. Choi. "A HIGH POWER-DENSITY, SELF-SUSTAINED HYBRID BIO-SOLAR CELL WITH CO-CULTURE OF HETEROTROPHIC AND PHOTOSYNTHETIC BACTERIA." In 2016 Solid-State, Actuators, and Microsystems Workshop. San Diego: Transducer Research Foundation, 2016. http://dx.doi.org/10.31438/trf.hh2016.106.

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Chen, Lea-Der. "Radiative Transport and Hydrodynamic Modeling of Microalgae Photosynthesis in Bio-Flow Reactors." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87116.

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A simplified two-phase flow PCH (physicochemical hydrodynamics) model is developed for modelling and simulation of microalgae growth in bio-flow reactor. The model considers carbon balance through coupled gas-phase and liquid-phase transport equations. The transport model accounts for interfacial transport of CO2 from gas bubble/slug to liquid, and microalgae photosynthesis reactions. A simplified photosynthesis reaction is adopted in the model, which assumes a pseudo-first order reaction for glucose pathway. The reaction rate is calculated assuming that it is proportional to the solar absorption rate by microalgae in the liquid. The reaction model also includes a simplified photoinhibition sub-model which assumes that the rate of photoinhibition is proportional to the square-root of solar irradiation reaching the algae cell. The Beer-Lambert law is used to calculate the radiative transfer of solar flux in seeded microalgae liquid flow. Analytical solution was obtained for single-channel bio-flow reactor. Decrease of the CO2 concentration in gas bubble/slug and in liquid flow is assumed to be the result of the microalgae growth in bio-flow reactor. Two efficiency parameters are defined: CO2 conversion efficiency and photosynthesis efficiency. The conversion efficiency is calculated based on the decrease of CO2 between the bio-flow reactor inlet and exit. The photosynthesis efficiency is based upon the heating value of microalgae yield versus solar irradiation. The rate of microalgae yield is calculated by multiplying the mass stoichiometric coefficient of photosynthesis reaction to CO2 consumption rate. Model analysis provided some insight of the microalgae formation in bio-flow reactor as interpreted from the PCH-coupled photosynthesis model that includes a dimensionless number as a potential scaling parameter for gas-phase only CO2 supply operation; photosynthesis efficiency increases with increasing CO2 molar concentration (i.e., number of moles per unit volume) at the reactor inlet for both gas-phase and liquid-phase only CO2 supply; an optimal irradiation flux for maximum photosynthesis efficiency — a factor to consider should artificial light source be used for harvesting algae.
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Chentir, M. T., T. Fujii, T. Okada, T. Isoda, K. Itoh, H. Endo, Y. Hoshi, N. Usami, and S. Samukawa. "Fabrication And Optical Characterization Of α-Germanium Nano Disk Structure Using Bio-Template And Neutral Beam Etching for Solar Cell Application." In 2014 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2014. http://dx.doi.org/10.7567/ssdm.2014.g-7-4.

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8

Hotz, Nico. "Non-Concentrated Solar Collector for Solarthermal Chemical Reactions." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65433.

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The purpose of this study is the proof that non-concentrating solar-thermal collectors can supply the thermal energy needed to power endothermic chemical reactions such as steam reforming of alcoholic (bio-) fuels. Traditional steam reformers require the combustion of up to 50% of the primary fuel to enable the endothermic reforming reaction. Our goal is to use a selective solar absorber coating on top of a collector-reactor surrounded by vacuum insulation. For methanol reforming, a reaction temperature of 220–250°C is required for effective methanol-to-hydrogen conversion. A multilayer absorber coating (TiNOX) is used, as well as a turbomolecular pump to reach ultra-high. The collector-reactor is made of copper tubes and plates and a Cu/ZnO/Al2O3 catalyst is integrated in a porous ceramic structure towards the end of the reactor tube. The device is tested under 1000 W/m2 solar irradiation (using an ABB class solar simulator, air mass 1.5). Numerical and experimental results show that convective and conductive heat losses are eliminated at vacuum pressures of <10−4 Torr. By reducing radiative losses through chemical polishing of the non-absorbing surfaces, the methanol-water mixture can be effectively heated to 240–250°C and converted to hydrogen-rich gas mixture. For liquid methanol-water inlet flow rates up to 1 ml/min per m2 of solar collector area can be converted to hydrogen with a methanol conversion rate above 90%. This study will present the design and fabrication of the solar collector-reactor, its testing and optimization, and its integration into an entire hydrogen-fed Polymer Electrolyte Membrane fuel cell system.
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9

Dicks, Andrew L. "Providing and Processing Fuel." In ASME 2003 1st International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2003. http://dx.doi.org/10.1115/fuelcell2003-1699.

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Hydrogen, the preferred fuel for fuel cells, can be obtained from many sources. Fossil fuels such as oil, natural gases and coal, as well as bio-fuels can all be chemically converted to hydrogen. The basic chemistry of the various steps in the conversion is well known. However, each type of fuel cell has different fuelling requirements and therefore the design of fuel processors depends not only on the availability and form of fuel but also the application. For stationary power plants natural gas is an ideal fuel. It is best converted to hydrogen as close to the fuel cell as possible. In the case of the MCFC and SOFC this ensures high efficiency by using heat that would otherwise be lost from the stack. Recent advances in micro-channel catalytic reactor design may also lead to higher efficiencies and more compact stationary and portable systems. For transportation applications, hydrogen appears to be the preferred fuel in the long term. In the near term, methanol is a good fuel to use in vehicles, since it can be converted relatively easily on-board to hydrogen. Hydrogen can be generated by electrolysing water, and in combination with a fuel cell, this offers a means of storing energy from intermittent renewable power sources. In the future, hydrogen may be generated by direct solar electro-photolysis, or by biological methods. As such technologies advance, the transportation and storage of hydrogen stands out as perhaps the major barrier to the realisation of commercial fuel cell systems.
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Rahman, Mohammad Maksudur, Makoto Igarashi, Weiguo Hu, Mohd Erman Syazwan, Yusuke Hoshi, Noritaka Usami, and Seiji Samukawa. "High photo-current generation in a three-dimensional silicon quantum dot superlattice fabricated by combination of bio-template and neutral beam etching for quantum dot solar cell." In 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC). IEEE, 2013. http://dx.doi.org/10.1109/pvsc.2013.6744972.

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Reports on the topic "Bio-solar cell"

1

Lopez, Rene. Bio-Inspired Electro-Photonic Structure for Solar Cells. Office of Scientific and Technical Information (OSTI), December 2016. http://dx.doi.org/10.2172/1418689.

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2

Martin, Joshua J., Mark H. Griep, Anit Giri, Samuel G. Hirsch, Victor Rodriguez-Santiago, Andres A. Bujanda, James E. McCauley, and Shashi P. Karna. Tunable TiO2 Nanotube Arrays for Flexible Bio-Sensitized Solar Cells. Fort Belvoir, VA: Defense Technical Information Center, August 2012. http://dx.doi.org/10.21236/ada568684.

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