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Updated: Feb 14, 2026

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
Published on: August 23, 2012
Core chlorination position governs charge transport and efficiency in small-molecule acceptors for organic solar
Jinjin Wang1, Han Tian1, Jiaxu Che2
1Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China. zhhuiluo@szu.edu.cn.
Abstract:
Halogen positional isomerism provides an effective strategy to regulate the solid-state organization of non-fullerene acceptors. Two dibenzo[b,f]oxepine-based acceptors with para- and meta-chlorination were designed. Meta-chlorination enhances intermolecular packing and charge transport, enabling efficient charge extraction and a high power conversion efficiency of over 18.5%, outperforming the para-substituted analogue.
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