4.7 Article

An electron acceptor featuring a B-N covalent bond and small singlet-triplet gap for organic solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 58, Issue 62, Pages 8686-8689

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc03172h

Keywords

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Funding

  1. Ministry of Science and Technology of China [2019YFA0705900]
  2. National Natural Science Foundation of China [21875072, U20A6002, 22109046]
  3. Guangdong Innovative and Entrepreneurial Research Team Program [2019ZT08L075]
  4. Guangdong Basic and Applied Basic Research Foundation [2022A1515011417]
  5. China Postdoctoral Science Foundation [2020TQ0102]

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BNTT2F, an electron acceptor with a low singlet-triplet gap of 0.20 eV and a B-N covalent bond, has been developed for organic solar cells. The optimized device based on BNTT2F achieved an efficiency of 8.3%, indicating the great potential of B-N covalent bond-containing pi-conjugated molecules in photovoltaics.
BNTT2F, an electron acceptor featuring a B-N covalent bond and singlet-triplet gap as low as 0.20 eV via the multiple resonance effect, is developed for organic solar cells. The optimized device based on BNTT2F offered an efficiency of 8.3%, suggesting the great prospect of B-N covalent bond-containing pi-conjugated molecules for photovoltaics.

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