Dipolar Compounds Containing Fluorene and a Heteroaromatic Ring as the Conjugating Bridge for High-Performance Dye-Sensitized Solar Cells

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题名:	Dipolar Compounds Containing Fluorene and a Heteroaromatic Ring as the Conjugating Bridge for High-Performance Dye-Sensitized Solar Cells
作者:	Chen,CH;Hsu,YC;Chou,HH;Thomas,KRJ;Lin,JT;Hsu,CP
贡献者:	化學學系
日期:	2010
上传时间:	2012-03-27 18:07:59 (UTC+8)
出版者:	國立中央大學
摘要:	A novel series of dipolar organic dyes containing diarylamine as the electron donor, 2-cyanoacrylic acid as the electron acceptor, and fluorene and a heteroaromatic ring as the conjugating bridge have been developed and characterized. These metal-free dyes exhibited very high molar extinction coefficients in the electronic absorption spectra and have been successfully fabricated as efficient nanocrystalline TiO(2) dye-sensitized solar cells (DSSCs). The solar-energy-to-electricity conversion efficiencies of DSSCs ranged from 4.92 to 6.88%, which reached 68-96% of a standard device of N719 fabricated and measured under the same conditions. With a TiO(2) film thickness of 6 mu m, DSSCs based on these dyes had photo-currents surpassing that of the N719-based device. DFT computation results on these dyes also provide detailed structural information in connection with their high cell performance.
關聯:	CHEMISTRY-A EUROPEAN JOURNAL
显示于类别:	[化學學系] 期刊論文

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