Structural engineering of dipolar organic dyes with an electron-deficient diphenylquinoxaline moiety for efficient dye-sensitized solar cells

Sie Rong Li, Chuan Pei Lee, Chia Wei Liao, Wei Lin Su, Chun Ting Li, Kuo Chuan Ho*, Shih Sheng Sun

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

17 引文 斯高帕斯(Scopus)

摘要

A series of new organic dyes containing an electron-deficient diphenylquinoxaline moiety was synthesized and employed as the photosensitizers in dye-sensitized solar cells (DSSCs). The multiple phenyl rings in the peripheral positions of the dye structure provide a hydrophobic barrier to slow down the charge recombination. The photophysical and electrochemical properties of these dyes were investigated in detail. The cell performance and the associated photophysical and electrochemical properties can be easily tuned by the modification of the aromatic fragments within the π spacer. Dye CR204-based DSSC reached the best energy conversion efficiency of 6.49% with an open-circuit voltage of 666 mV, a short-circuit photocurrent density of 14.9 mA cm-2, and a fill factor of 0.66. The IPCE of CR204-based DSSC covers the light-harvesting to NIR region.

原文英語
頁(從 - 到)6276-6284
頁數9
期刊Tetrahedron
70
發行號36
DOIs
出版狀態已發佈 - 2014 九月 9
對外發佈

ASJC Scopus subject areas

  • 生物化學
  • 藥物發現
  • 有機化學

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