Low-temperature flexible Ti/TiO2 photoanode for dye-sensitized solar cells with binder-free TiO2 paste

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题名:	Low-temperature flexible Ti/TiO2 photoanode for dye-sensitized solar cells with binder-free TiO2 paste
作者:	吳春桂;Lin, Lu-Yin;Lee, Chuan-Pei;Tsai, Keng-Wei;Yeh, Min-Hsin;Chen, Chia-Yuan;Vittal, R.;Wu, Chun-Guey;Ho, Kuo-Chuan
贡献者:	理學院化學學系
关键词:	Annealing;Applied sciences;binder-free TiO2 paste;dye-sensitized solar cells;electrochemical impedance spectroscopy;Energy;Exact sciences and technology;Natural energy;Photovoltaic cells;Photovoltaic conversion;semi-transparent Pt counter electrode;Solar cells. Photoelectrochemical cells;Solar energy;Temperature
日期:	2012-01-01
上传时间:	2026-04-21 13:49:31 (UTC+8)
出版者:	John Wiley and Sons Ltd;Chichester, UK: John Wiley & Sons, Ltd
摘要:	摘要： An energy‐economical dye‐sensitized solar cell (DSSC) with highly flexible Ti/TiO2 photoanode was developed through a low‐temperature process, using a binder‐free TiO2 paste. Ti foils, coated with the binder‐free TiO2 films were annealed at various temperature. Scanning electron microscopic (SEM) images of the films show uniform, mesoporous and crack‐free surface morphologies as well as interpenetrated TiO2 network. DSSCs with binder‐free TiO2 films annealed at 450, 350, 250 and 120°C show solar‐to‐electricity conversion efficiencies (η) of 4.33, 4.34, 3.72 and 3.40%, respectively, which are comparable to the efficiency of 4.56% obtained by using a paste with binder and annealing it at 450°C; this observation demonstrates the benefits of a binder‐free TiO2 paste for the fabrication of energy‐fugal DSSCs. On the other hand, when organic binder was used in the TiO2 paste for film preparation, a drastic deterioration in the cell performance with decreasing annealing temperature is noticed. Laser‐induced photo‐voltage transient technique is used to estimate the electron lifetime in various Ti/TiO2 films. Electrochemical impedance spectroscopic (EIS) analysis shows that the lower the annealing temperature of the TiO2 coated Ti foil, the larger the charge transfer resistance at the TiO2/dye/electrolyte interface (Rct2). Copyright © 2011 John Wiley & Sons, Ltd. Flexible dye‐sensitized solar cells (DSSCs) with binder‐free TiO2 films annealed at 450, 350, 250 and 120°C show cell efficiencies of 4.33, 4.34, 3.72, and 3.40%, respectively, which are comparable to that of 4.56% obtained by using a paste with binder (450°C); this observation demonstrates the benefits of a binder‐free TiO2 paste for the fabrication of energy‐fugal DSSCs. Laser‐induced photo‐voltage transient technique is used to estimate the electron lifetime in various Ti/TiO2 films. 其他題名： Prog. Photovolt: Res. Appl 出版者： Chichester, UK: John Wiley & Sons, Ltd 出版日期： 2012-03 出處： Progress in photovoltaics, 2012-03, Vol.20 (2), p.181-190 資源來源： Wiley Online Library Journals 版權： Copyright © 2011 John Wiley & Sons, Ltd. 版權： 2015 INIST-CNRS 版權： Copyright © 2012 John Wiley & Sons, Ltd. 識別號： ISSN: 1062-7995 識別號： EISSN: 1099-159X 識別號： DOI: 10.1002/pip.1116 識別號： CODEN: PPHOED
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