A star-shaped oligothiophene end-capped with alkyl cyanoacetate groups for solution-processed organic solar cells?

Chemical Communications Pub Date: 2012-08-13 DOI: 10.1039/C2CC35333D

Abstract

A star-shaped oligothiophene based on triphenylamine as a core and 2-ethylhexyl cyanoacetate as end groups (S(TPA-3T-CA)) was synthesized. S(TPA-3T-CA) exhibited strong absorption and high hole mobility. Solution-processed solar cells based on S(TPA-3T-CA):PC71BM showed a power conversion efficiency of 3.60% and a fill factor of 0.56.

Graphical abstract: A star-shaped oligothiophene end-capped with alkyl cyanoacetate groups for solution-processed organic solar cells
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