S⋯Cl intramolecular interaction: An efficient strategy to improve power conversion efficiency of organic solar cells

  • Sai Jiang
  • , Linqing Qin
  • , Hao Chen
  • , Xiaoxi Wu
  • , Yuhao Li
  • , Lei Lv
  • , Jingya Chen
  • , Youtian Tao
  • , Shiming Zhang
  • , Xinhui Lu
  • , Qinqin Shi
  • , Hui Huang*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Noncovalent conformational locks (NCLs) including S⋯N, Se⋯O, and S⋯O etc. Have been an effective strategy to improve the planarity and rigidity, and charge transport mobility of organic/polymeric semiconductors. Herein, by replacing methyl group (ITMIC) with chlorine (ITCIC) in the π-bridge, the planarity and rigidity of the π-conjugated skeleton was enhanced by introduction of S⋯Cl NCLs, thus the charge transport mobility was improved accordingly. As a result, PM6:ITCIC based organic solar cells showed impressive PCE of 11.34%, much higher than that based on PM6:ITMIC. This contribution demonstrated a novel kind NCLs (S⋯Cl) for improving the performance of organic solar cells.

Original languageEnglish
Article number108416
JournalDyes and Pigments
Volume179
DOIs
StatePublished - Aug 2020
Externally publishedYes

Keywords

  • Charge transport mobility
  • Non-fullerene acceptor
  • Noncovalent conformational locks
  • Organic solar cells

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