A Tetraphenylethylene Core-Based 3D Structure Small Molecular Acceptor Enabling Efficient Non-Fullerene Organic Solar Cells

A Tetraphenylethylene Core-Based 3D Structure Small Molecular Acceptor Enabling Efficient Non-Fullerene Organic Solar Cells

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 provide...

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Veröffentlicht in:Advanced materials (Weinheim) 2015-02, Vol.27 (6), p.1015-1020
Hauptverfasser: Liu, Yuhang, Mu, Cheng, Jiang, Kui, Zhao, Jingbo, Li, Yunke, Zhang, Lu, Li, Zhengke, Lai, Joshua Yuk Lin, Hu, Huawei, Ma, Tingxuan, Hu, Rongrong, Yu, Demei, Huang, Xuhui, Tang, Ben Zhong, Yan, He
Format: Artikel
Sprache:eng
Schlagworte:
3D structure
Blends
Energy conversion efficiency
Molecular structure
non-fullerene organic solar cell
organic solar cell
Photovoltaic cells
small molecular acceptor
Solar cells
tetraphenylethylene
Three dimensional
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Zusammenfassung: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201404152