Constructing continuous acceptor fibrillar networks and achieving uniform phase separation <i>via</i> polymer-assisted morphology control for 20.3% efficiency additive-free organic solar cells

Authors: Fengbo Sun, Jingnan Wu, Bo Cheng, Lixuan Kan, Feng Hua, Wei Sun, Hao Wang, Yumiao Huo, Sixuan Chen, Xinxin Xia, Xiaoyan Du, Feng Liu, Ergang Wang, Xia Guo, Yongfang Li, Maojie Zhang

Published: 2025-06-25

DOI: 10.1039/d5ee01843a

Source: Full article

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Abstract

A small fraction of polymer acceptor was introduced as both nucleating agent and epitaxial growth template to enable small-molecule acceptor to form a continuous fibrillar network, achieving 20.3% efficiency in additive-free organic solar cells.