On the photophysical and electrochemical studies of dye-sensitized solar cells

Kuo Chuan Ho, Jian Ging Chen, Chia Yuan Chen, Shi Jhang Wu, Jheng Ying Li, Chun Guey Wu

研究成果: 書貢獻/報告類型會議論文篇章同行評審


In this study, the photoelectrochemical characteristics of a ruthenium photosensitizer with an alkyl bithiophene group, designated as CYC-B1, are studied. The effect of mesoporous TiO2 film thickness on the photovoltaic performance of CYC-B1 and N3 dye sensitized solar cells was investigated. The performance of the DSSC fabricated using CYC-B1 dye anchored TiO2 photoelectrode showed a convincing enhancement in cell efficiency when the TiO2 film thickness was increased from 3 μm (eff.=5.41%) to 6 μm (eff.=7.19%). The efficiency of the CYC-B1 sensitized DSSC was maximum at 6 μm of the TiO2 film thickness, reached its limiting value and remained constant up to 53 μm, although a similar trend was also observed for N3 dye sensitized DSSC, however, the maximum efficiency achieved was at 27 μm thickness (eff.=6.75%). The effect of guanidinium thiocyanate (GuSCN) (additive) addition to the electrolyte on the photovoltaic performance of DSSCs based on CYC-B1 was also investigated. Furthermore, the electrochemical impedance spectroscopy (EIS) technique and photo-transient laser method have been employed to analyze the charge transfer resistances (R ct) and the lifetime of the injected electrons on the TiO2 containing different thicknesses.

主出版物標題Synthesis and Processing of Organic and Polymeric Functional Materials for a Sustainable Energy Economy
出版狀態已出版 - 2008
事件2008 MRS Fall Meeting - Boston, MA, United States
持續時間: 1 12月 20085 12月 2008


名字Materials Research Society Symposium Proceedings


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國家/地區United States
城市Boston, MA


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