A guest-assisted molecular-organization approach for &gt;17% efficiency organic solar cells using environmentally friendly solvents

Chen, Haiyang; Zhang, Rui; Chen, Xiaobin; Zeng, Guang; Kobera, Libor; Abbrent, Sabina; Zhang, Ben; Chen, Weijie; Xu, Guiying; Oh, Jiyeon; Kang, So-Huei; Chen, Shanshan; Yang, Changduk; Brus, Jirí; Hou, Jianhui; Gao, Feng; Li, Yaowen; Li, Yongfang

doi:10.1038/s41560-021-00923-5

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A guest-assisted molecular-organization approach for >17% efficiency organic solar cells using environmentally friendly solvents

Author(s): Haiyang Chen , Rui Zhang , Xiaobin Chen , Guang Zeng , Libor Kobera , Sabina Abbrent , Ben Zhang , Weijie Chen , Guiying Xu , Jiyeon Oh , So-Huei Kang , Shanshan Chen , Changduk Yang , Jiri Brus , Jianhui Hou , Feng Gao , Yaowen Li , Yongfang Li

Publication date (Electronic): November 01 2021

Journal: Nature Energy

Publisher: Springer Science and Business Media LLC

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Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core

Jun Yuan, Yunqiang Zhang, Liuyang Zhou … (2019)

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Organic solar cells based on non-fullerene acceptors

Jianhui Hou, Feng Gao, Richard Friend … (2018)

Organic solar cells (OSCs) have been dominated by donor:acceptor blends based on fullerene acceptors for over two decades. This situation has changed recently, with non-fullerene (NF) OSCs developing very quickly. The power conversion efficiencies of NF OSCs have now reached a value of over 13%, which is higher than the best fullerene-based OSCs. NF acceptors show great tunability in absorption spectra and electron energy levels, providing a wide range of new opportunities. The coexistence of low voltage losses and high current generation indicates that new regimes of device physics and photophysics are reached in these systems. This Review highlights these opportunities made possible by NF acceptors, and also discuss the challenges facing the development of NF OSCs for practical applications.