Front side illuminated dye-sensitized solar cells using anodic TiO₂ mesoporous layers grown on FTO-glass

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• 作者：Kiyoung Lee ; Doohun Kim ; Steffen Berger ; Robin Kirchgeorg ; Patrik Schmuki
• 关键词：TiO2 nanotube ; Mesoporous ; Anodic oxidation ; Dye-sensitized solar cells
• 刊名：Electrochemistry Communications
• 出版年：2012
• 出版时间：August, 2012
• 年：2012
• 卷：22
• 期：Complete
• 页码：157-161
• 全文大小：864 K

文摘

In the present work, we investigate the performance of anodic, self-organized TiO₂ mesoporous structures (TMSs) in dye-sensitized solar cells (DSSCs) under front-side illumination conditions. In order to fabricate structures usable in a front-side (FS) configuration, TMSs were formed on FTO glass by a full anodic conversion of evaporated Ti films on the glass substrate in a glycerol/K₂HPO₄ electrolyte at 180 ¡ãC. The resulting mesoporous layers can be assembled to FS dye sensitized solar cells which show a thickness of only 3 ¦Ìm and a remarkable efficiency of 4.34 % . This is significantly higher than, for example, anodic TiO₂ nanotubes of the same length even after efficiency enhancing TiCl₄ treatments (3.01 % ). The best efficiency value for TMS-based DSSCs that we currently reached is for a 7 ¦Ìm thick TMS layer, this is ¡Ö 6.82 % which is highly promising for further improvements.