Design of ultra-high luminescent polymers for organic photovoltaic cells with low energy loss

Jingwen Wang, Lijiao Ma, Young Woong Lee, Huifeng Yao, Ye Xu, Shaoqing Zhang, Han Young Woo, Jianhui Hou

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Here, new polymers named PBTT-Cn(n= 3, 4, or 5) have been designed based on carboxylate-functionalized thieno[3,2-b]thiophene units. The electroluminescence external quantum efficiencies (EQEEL) of pristine PBTT-C4 and C5 films are over 1 × 10−2, which are among the highest results for OPV materials. Through combination with BTP-eC9, the PBTT-C4-based film showed a high EQEELof 6 × 10−4and theVnon-radlossis 0.19 eV. As a result, a high open-circuit voltage of 0.89 V and a satisfactory PCE of 15% were recorded in the PBTT-C4-based OPV cells.

Original languageEnglish
Pages (from-to)9132-9135
Number of pages4
JournalChemical Communications
Volume57
Issue number72
DOIs
Publication statusPublished - 2021 Sep 16

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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