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Abstract <p>A series of non-fullerene acceptors (NFAs) based on macrocyclic sidechain substituted benzene cores were developed. These cores have used eight, ten or twelve carbon atoms to connect two <i>para</i>-oxygen atoms on the benzene, and could endow NFAs with almost coplanar backbone and strong electron-donating ability. Further, these out-of-plane macrocyclic side chain can suppress over-aggregation of NFAs for good solubility and optimal π-π stacking. After optimization, organic solar cells based on the D18-Cl-B with two different NFA achieved decent PCE of 7.10 and 6.83%.</p>

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Non-Fused Nonfullerene Acceptors Based on Macrocyclic Sidechain Substituted Benzene Core for Efficient Organic Solar Cells

  • 期刊论文

  • 发表日期：

    2026年6月15日

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  • Huiyong Liu,
  • Guangan Nie,
  • Jiamin Cao,
  • Xiaomei Zhao,
  • Ning Zhang,
  • Zongju Wu,
  • Fangbo Zhao,
  • Baoyu Huang

摘要

Abstract

A series of non-fullerene acceptors (NFAs) based on macrocyclic sidechain substituted benzene cores were developed. These cores have used eight, ten or twelve carbon atoms to connect two para-oxygen atoms on the benzene, and could endow NFAs with almost coplanar backbone and strong electron-donating ability. Further, these out-of-plane macrocyclic side chain can suppress over-aggregation of NFAs for good solubility and optimal π-π stacking. After optimization, organic solar cells based on the D18-Cl-B with two different NFA achieved decent PCE of 7.10 and 6.83%.