Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells
Titania powder (P25) was dispersed by bead-milling breakdown method, and the dispersivity of TiO2 was controlled by adjusting the mean secondary TiO2 particle size to 45, 56, and 75 nm by changing the dispersion solvent blend ratio of ethanol and terpineol. The transparency of the coated layer incre...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2011/234931 |
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| author | Yasuhiro Yamamoto Yukihiro Aoyama Sumiyo Shimizu Junya Kano Fumio Saito Seigo Ito |
| author_facet | Yasuhiro Yamamoto Yukihiro Aoyama Sumiyo Shimizu Junya Kano Fumio Saito Seigo Ito |
| author_sort | Yasuhiro Yamamoto |
| collection | DOAJ |
| description | Titania powder (P25) was dispersed by bead-milling breakdown method, and the dispersivity of TiO2 was controlled by adjusting the mean secondary TiO2 particle size to 45, 56, and 75 nm by changing the dispersion solvent blend ratio of ethanol and terpineol. The transparency of the coated layer increased when the particle size of TiO2 aggregates became smaller than 100 nm. Although the transparency was significantly different according to differences in the size of nanocrystallyne-TiO2 aggregates, the resulting photovoltaic (PV) effect of a dye-sensitized solar cell (DSSC) was not significantly different between the different aggregate sizes. A double layer structure (transparent TiO2 layer/opaque TiO2 layer) was adopted to improve the PV effect, which resulted in an improvement of the photocurrent and conversion efficiency of 13.2% and 11.1%, respectively, from that for the DSSCs with single-layered TiO2 electrodes. |
| format | Article |
| id | doaj-art-702f05b72d384e2ab3314c9dc771f1b6 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-702f05b72d384e2ab3314c9dc771f1b62025-02-03T05:52:21ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2011-01-01201110.1155/2011/234931234931Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar CellsYasuhiro Yamamoto0Yukihiro Aoyama1Sumiyo Shimizu2Junya Kano3Fumio Saito4Seigo Ito5Mikuni Color Ltd., 101 Kokubunji, Mikunino-cho, Himeji, Hyogo 671-0234, JapanMikuni Color Ltd., 101 Kokubunji, Mikunino-cho, Himeji, Hyogo 671-0234, JapanMikuni Color Ltd., 101 Kokubunji, Mikunino-cho, Himeji, Hyogo 671-0234, JapanGraduate School of Environmental Studies, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JapanGraduate School of Environmental Studies, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JapanDepartment of Electrical Engineering and Computer Sciences, Graduate School of Engineering, University of Hyogo, 2167 Shosya, Himeji, Hyogo 671-2280, JapanTitania powder (P25) was dispersed by bead-milling breakdown method, and the dispersivity of TiO2 was controlled by adjusting the mean secondary TiO2 particle size to 45, 56, and 75 nm by changing the dispersion solvent blend ratio of ethanol and terpineol. The transparency of the coated layer increased when the particle size of TiO2 aggregates became smaller than 100 nm. Although the transparency was significantly different according to differences in the size of nanocrystallyne-TiO2 aggregates, the resulting photovoltaic (PV) effect of a dye-sensitized solar cell (DSSC) was not significantly different between the different aggregate sizes. A double layer structure (transparent TiO2 layer/opaque TiO2 layer) was adopted to improve the PV effect, which resulted in an improvement of the photocurrent and conversion efficiency of 13.2% and 11.1%, respectively, from that for the DSSCs with single-layered TiO2 electrodes.http://dx.doi.org/10.1155/2011/234931 |
| spellingShingle | Yasuhiro Yamamoto Yukihiro Aoyama Sumiyo Shimizu Junya Kano Fumio Saito Seigo Ito Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells International Journal of Photoenergy |
| title | Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells |
| title_full | Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells |
| title_fullStr | Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells |
| title_full_unstemmed | Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells |
| title_short | Influence of Titania Dispersivity on the Conversion Efficiency of Dye-Sensitized Solar Cells |
| title_sort | influence of titania dispersivity on the conversion efficiency of dye sensitized solar cells |
| url | http://dx.doi.org/10.1155/2011/234931 |
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