期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 12, 期 4, 页码 574-578出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.02.003
关键词
TiO2 mesosponge; Anodic oxidation; TiCl4 treatment; Pore filling; Dye-sensitized solar cells
资金
- DFG
In the present work, we produce 15 mu m thick titania mesosponge layers (TMSL) by a Ti anodization/etching process and use the layers in dye-sensitized solar cells (DSCs). We show that the solar cell efficiency can considerably be improved by a TiCl4 hydrolysis treatment (increase of approx. 40% to an overall value of 4.9% under AM 1.5 illumination). This beneficial effect is due to the decoration of the similar to 10 nm wide channels present in TMSL with TiO2 nanoparticles of approx. 3 nm diameter, which allow for a significantly higher specific dye loading of the TMS structure. (C) 2010 Elsevier B.V. All rights reserved.
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