Haptacyclic Carbazole-Based Ladder-Type Nonfullerene Acceptor with Side-Chain Optimization for Efficient Organic Photovoltaics.

@article{Hsiao2017HaptacyclicCL,
  title={Haptacyclic Carbazole-Based Ladder-Type Nonfullerene Acceptor with Side-Chain Optimization for Efficient Organic Photovoltaics.},
  author={Yu-Tang Hsiao and Chia-Hua Li and Shao-Ling Chang and Soowon Heo and Keisuke Tajima and Yen-Ju Cheng and Chain-Shu Hsu},
  journal={ACS applied materials & interfaces},
  year={2017},
  volume={9 48},
  pages={
          42035-42042
        }
}
In this research, a haptacyclic carbazole-based dithienocyclopentacarbazole (DTCC) ladder-type structure was formylated to couple with two 1,1-dicyanomethylene-3-indanone (IC) moieties, forming a new nonfullerene acceptor DTCCIC-C17 using a bulky branched 1-octylnonayl side chain at the nitrogen of the embedded carbazole and four 4-octylphenyl groups at the sp3-carbon bridges. The rigid and coplanar main-chain backbone of the DTCC core provides a broad light-absorbing window and a higher-lying… CONTINUE READING
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