Improving the Photovoltaic Performance of PBDB-T:PC71BM-Based Ternary Solar Cells by Employing Arylmethylene-Substituted Small Molecules as the Guest Acceptor
Xuejiao Tang,
Yueju Chen,
Haitao Liao
et al.
Abstract:Four arylmethylene-substituted small-molecule acceptors (SMAs), IDTV-SiIC, IDTVT-PhIC, m-IDTV-PhIC, and DTCFDV-IC were introduced to the host PBDB-T:PC 71 BM binary system as a guest acceptor to construct PBDB-T:PC 71 BM:SMA ternary polymer solar cells (PSCs), respectively. After optimization, these ternary PSCs exhibit power conversion efficiencies (PCEs) of 8.93%, 9.28%, 9.68%, and 9.78% for IDTV-SiIC, IDTVT-PhIC, m-IDTV-PhIC, and DTCFDV-IC, respectively, all of which are higher than those of the host binary… Show more
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