4.7 Article

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

Journal

CHEMICAL COMMUNICATIONS
Volume 48, Issue 77, Pages 9655-9657

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cc35333d

Keywords

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Funding

  1. NSFC [21025418, 51011130028, 21021091]
  2. 973 Project [2011CB808401]
  3. Chinese Academy of Sciences

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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.

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