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

摘要

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.

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主出版物標題Synthesis and Processing of Organic and Polymeric Functional Materials for a Sustainable Energy Economy
頁面18-24
頁數7
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

出版系列

名字Materials Research Society Symposium Proceedings
1149
ISSN(列印)0272-9172

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???event.eventtypes.event.conference???2008 MRS Fall Meeting
國家/地區United States
城市Boston, MA
期間1/12/085/12/08

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