The effect of thieno[3,2-b]thiophene on the absorption, charge mobility and photovoltaic performance of diketopyrrolopyrrole-based low bandgap conjugated polymers

Yongxi Li, Chih Yu Chang, Yu Chen, Yi Song, Chang Zhi Li, Hin Lap Yip, Alex K.Y. Jen, Chao Li

研究成果: 雜誌貢獻文章同行評審

33 引文 斯高帕斯(Scopus)

摘要

A series of two-dimensional diketopyrrolopyrrole-based low band gap conjugated polymers were synthesized. Replacing thiophene with thieno[3,2-b]thiophene in the side chain and bridge resulted in significant changes to the optical, electrochemical, and morphological properties of the polymers, as well as the subsequent performance of devices made from these materials. The polymer with thieno[3,2-b]thiophene as a bridge instead of a side chain exhibited an increased absorption coefficient and hole mobility, and resulted in the highest power conversion efficiency (5.34%) in this series of polymers. This finding provides valuable insight for the development of more efficient low band-gap polymers.
原文英語
頁(從 - 到)7526-7533
頁數8
期刊Journal of Materials Chemistry C
1
發行號45
DOIs
出版狀態已發佈 - 十二月 7 2013
對外發佈

ASJC Scopus subject areas

  • 化學 (全部)
  • 材料化學

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