A Tetraphenylethylene Core‐Based 3D Structure Small Molecular Acceptor Enabling Efficient Non‐Fullerene Organic Solar Cells
Yuhang Liu(Hong Kong University of Science and Technology), Cheng Mu(Hong Kong University of Science and Technology), Kui Jiang(Hong Kong University of Science and Technology), Jingbo Zhao(Hong Kong University of Science and Technology), Yunke Li(Hong Kong University of Science and Technology), Lu Zhang(Hong Kong University of Science and Technology), Zhengke Li(Hong Kong University of Science and Technology), Joshua Yuk Lin Lai(Hong Kong University of Science and Technology), Huawei Hu(Hong Kong University of Science and Technology), Tingxuan Ma(Hong Kong University of Science and Technology), Rongrong Hu(Hong Kong University of Science and Technology), Demei Yu(Xi'an Jiaotong University), Xuhui Huang(Hong Kong University of Science and Technology), Ben Zhong Tang(Hong Kong University of Science and Technology), He Yan(Hong Kong University of Science and Technology)
Cited by 375
Abstract
A tetraphenylethylene core-based small molecular acceptor with a unique 3D molecular structure is developed. Bulk-heterojunction blend films with a small feature size (≈20 nm) are obtained, which lead to non-fullerene organic solar cells (OSCs) with 5.5% power conversion efficiency. The work provides a new molecular design approach to efficient non-fullerene OSCs based on 3D-structured small-molecule acceptors.
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