Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes
In order to improve the photoenergy conversion efficiency of dye-sensitized solar cells (DSCs), it is important to optimize their porous TiO2 electrodes. This paper examines the surface and cross-sectional views of the electrodes using scanning electron micrography. Two types of samples for cross-s...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2009/517609 |
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| author | Seigo Ito Mohammad K. Nazeeruddin Shaik M. Zakeeruddin Peter Péchy Pascal Comte Michael Grätzel Takaki Mizuno Atsushi Tanaka Tsuguo Koyanagi |
| author_facet | Seigo Ito Mohammad K. Nazeeruddin Shaik M. Zakeeruddin Peter Péchy Pascal Comte Michael Grätzel Takaki Mizuno Atsushi Tanaka Tsuguo Koyanagi |
| author_sort | Seigo Ito |
| collection | DOAJ |
| description | In order to improve the photoenergy conversion efficiency of dye-sensitized solar cells (DSCs), it is important to optimize their porous TiO2 electrodes. This paper examines the surface and cross-sectional views of the electrodes using scanning electron micrography. Two types of samples for cross-sectional viewing were prepared by mechanically breaking the substrate and by using an Ar-ion etching beam. The former displays the surface of the TiO2 particles and the latter shows the cross-section of the TiO2 particles. We found interesting surface and cross-sectional structures in the scattering layer containing the 400 nm diameter particles, which have an angular and horned shape. The influence of TiO2 particle size and the thickness of the nanocrystalline-TiO2 electrode in DSCs using four kinds of sensitizing dyes (D149, K19, N719 and Z907) and two kinds of electrolytes (acetonitrile-based and ionic-liquid electrolytes) are discussed in regards to conversion efficiency, which this paper aims to optimize. |
| format | Article |
| id | doaj-art-1e49f3b4bd8e4487936c6e5d80937b53 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-1e49f3b4bd8e4487936c6e5d80937b532025-08-20T03:54:57ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2009-01-01200910.1155/2009/517609517609Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 ElectrodesSeigo Ito0Mohammad K. Nazeeruddin1Shaik M. Zakeeruddin2Peter Péchy3Pascal Comte4Michael Grätzel5Takaki Mizuno6Atsushi Tanaka7Tsuguo Koyanagi8Department of Electrical Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, JapanLaboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, SwitzerlandLaboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, SwitzerlandLaboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, SwitzerlandLaboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, SwitzerlandLaboratoire de Photonique et Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Station 6, CH-1015 Lausanne, SwitzerlandNew Business Research Center, JGC Catalysts and Chemicals Ltd., 13-2 Kitaminato-Machi, Wakamatsu-Ku, Kitakyuushu, Fukuoka 808-0027, JapanNew Business Research Center, JGC Catalysts and Chemicals Ltd., 13-2 Kitaminato-Machi, Wakamatsu-Ku, Kitakyuushu, Fukuoka 808-0027, JapanNew Business Research Center, JGC Catalysts and Chemicals Ltd., 13-2 Kitaminato-Machi, Wakamatsu-Ku, Kitakyuushu, Fukuoka 808-0027, JapanIn order to improve the photoenergy conversion efficiency of dye-sensitized solar cells (DSCs), it is important to optimize their porous TiO2 electrodes. This paper examines the surface and cross-sectional views of the electrodes using scanning electron micrography. Two types of samples for cross-sectional viewing were prepared by mechanically breaking the substrate and by using an Ar-ion etching beam. The former displays the surface of the TiO2 particles and the latter shows the cross-section of the TiO2 particles. We found interesting surface and cross-sectional structures in the scattering layer containing the 400 nm diameter particles, which have an angular and horned shape. The influence of TiO2 particle size and the thickness of the nanocrystalline-TiO2 electrode in DSCs using four kinds of sensitizing dyes (D149, K19, N719 and Z907) and two kinds of electrolytes (acetonitrile-based and ionic-liquid electrolytes) are discussed in regards to conversion efficiency, which this paper aims to optimize.http://dx.doi.org/10.1155/2009/517609 |
| spellingShingle | Seigo Ito Mohammad K. Nazeeruddin Shaik M. Zakeeruddin Peter Péchy Pascal Comte Michael Grätzel Takaki Mizuno Atsushi Tanaka Tsuguo Koyanagi Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes International Journal of Photoenergy |
| title | Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes |
| title_full | Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes |
| title_fullStr | Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes |
| title_full_unstemmed | Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes |
| title_short | Study of Dye-Sensitized Solar Cells by Scanning Electron Micrograph Observation and Thickness Optimization of Porous TiO2 Electrodes |
| title_sort | study of dye sensitized solar cells by scanning electron micrograph observation and thickness optimization of porous tio2 electrodes |
| url | http://dx.doi.org/10.1155/2009/517609 |
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