Fast Electron Transport in Metal Organic Vapor Deposition Grown Dye-sensitized ZnO Nanorod Solar Cells
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- 作者：Elena Galoppini ; Jonathan Rochford ; Hanhong Chen ; Gaurav Saraf ; Yicheng Lu ; Anders Hagfeldt ; Gerrit Boschloo
- 刊名：Journal of Physical Chemistry B
- 出版年：2006
- 出版时间：August 24, 2006
- 年：2006
- 卷：110
- 期：33
- 页码：16159 - 16161
- 全文大小：73K
- 年卷期：v.110,no.33(August 24, 2006)
- ISSN：1520-5207
文摘
The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grownZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the workingelectrode was compared. The electrodes were of similar thickness (2 
m) and sensitized with zinc(II) meso-tetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I-/I3- in 3-methoxypropionitrile. Electrontransport in the ZnO-C cells was comparable with that found for colloidal TiO2 films (transport time ~ 10ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2orders of magnitude faster (~30 s). Thus, the morphology of the working ZnO electrode plays a key rolefor the electron transport properties.
m) and sensitized with zinc(II) meso-tetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I-/I3- in 3-methoxypropionitrile. Electrontransport in the ZnO-C cells was comparable with that found for colloidal TiO2 films (transport time ~ 10ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2orders of magnitude faster (~30 s). Thus, the morphology of the working ZnO electrode plays a key rolefor the electron transport properties.