Zinc oxide-based dye-sensitized solar cells with a ruthenium dye containing an alkyl bithiophene group

Chuan Pei Lee, Chen Yu Chou, Chia Yuan Chen, Min Hsin Yeh, Lu Yin Lin, R. Vittal, Chun Guey Wu, Kuo Chuan Ho

研究成果: 雜誌貢獻期刊論文同行評審

30 引文 斯高帕斯(Scopus)

摘要

An improved light-harvesting ruthenium dye with an alkyl bithiophene group, designated as CYC-B1, is employed as the photosensitizer for a zinc oxide (ZnO)-based dye-sensitized solar cell (DSSC). ZnO films with N3 and CYC-B1 dyes exhibit different surface appearances. Interestingly, the ZnO nanocrystal electrode surface with CYC-B1 dye is found to be almost free from Zn 2+/dye-agglomerations, usually observed in the case of other commercial ruthenium dyes for such an electrode surface, e.g., N3 dye. Owing to this favorable effect of the CYC-B1 dye, the DSSC with a ZnO film (designated as ZN20) sensitized with this dye exhibited an average efficiency (η) of 4.85 ± 0.03%, which is about 94% higher than the η of the cell with N3 dye (2.50 ± 0.12%). The enhancements of the cell with CYC-B1 dye are explained by analyzing the electrochemical impedance spectra (EIS) and laser-induced photocurrent transients. Further, polymethylmethacrylate (PMMA) spheres with uniform sizes of ca. 300 nm are synthesized and incorporated to template the ZN20 film (designated as PMMA-ZN20); this PMMA-ZN20 film is used as the scattering layer and it is coated on the underlayer ZN20 film to make the photoanode film (ZN20/PMMA-ZN20) of a DSSC. The thus fabricated DSSC shows an η of 5.40 ± 0.03%.

原文???core.languages.en_GB???
頁(從 - 到)1-9
頁數9
期刊Journal of Power Sources
246
DOIs
出版狀態已出版 - 2014

指紋

深入研究「Zinc oxide-based dye-sensitized solar cells with a ruthenium dye containing an alkyl bithiophene group」主題。共同形成了獨特的指紋。

引用此