4.6 Article

Vacuum-deposited organic solar cells utilizing a low-bandgap non-fullerene acceptor

期刊

JOURNAL OF MATERIALS CHEMISTRY C
卷 10, 期 7, 页码 2569-2574

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1tc03954g

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资金

  1. National Key R&D Program of China [2019YFA0705900, 2017YFA0204701]
  2. National Natural Science Foundation of China [21572234, 21661132006, 91833304]

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In this study, a new vacuum-processable non-fullerene acceptor CBD was designed using a D-A strategy for efficient light harvesting in the visible-NIR region. The optimal CBD-based vacuum-deposited organic solar cells achieved a PCE of 0.86% with a low energy loss of 0.63 eV, showcasing the potential of D-A-type non-fullerene acceptors for vacuum-deposited solar cells.
In this work, a new vacuum-processable non-fullerene acceptor CBD was designed using a D-A strategy for the first time, which exhibits a low optical bandgap of 1.41 eV, and guarantees efficient light harvesting in the visible-NIR region. The optimal CBD-based vacuum-deposited organic solar cells with a planar heterojunction architecture delivered a PCE of 0.86% with a low energy loss of 0.63 eV, which indicates the great potential of D-A-type non-fullerene acceptors for vacuum-deposited solar cells.

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