A twisted monomeric perylenediimide electron acceptor for efficient organic solar cells

作     者：蔡芸皓 郭谢友 孙晓波 魏东辉 于明明 霍利军 孙艳明 

作者机构：Heeger Beijing Research and Development CenterSchool of Chemistry and EnvironmentBeihang UniversityBeijing 100191China The College of Chemistry and Molecular EngineeringZhengzhou UniversityZhengzhou 450001China 

基　　金：supported by the National Natural Science Foundation of China(51473009 and 51273203) the Fundamental Research Funds for the Central Universities(YWF-14-HHXY-007and YWF-14-HXXY-014) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2016年第59卷第6期

页      码：427-434页

摘      要：Perylenediimide(PDI)-based materials exhibit great potential as non-fullerene acceptors in bulk-heterojunction(BHJ) organic solar cells(OSCs). Recent investigations have revealed that PDI molecules with a twisted structure could disrupt aggregation of perylene unit. Here, we present a PDI monomer via bay-substitutions with four fused naphthalene units by three-step reactions, named TN-PDI. The introduction of four fused naphthalene rings into the bay positions of PDI unit leads to a strong steric hindrance with a twist angle of 33° between the two PDI subplanes. Blended with a wide-band gap polymer donor(PDBT-T1), the TN-PDI based non-fullerene solar cells show power conversion efficiency(PCE) of 3.0%. Our results indicate that the bay-substitutions with fused aromatic substitutions could be an efficient approach to develop monomeric PDI acceptors.

主 题 词：organic solar cells non-fullerene electron acceptors perylene diimide monomer 

学科分类：08[工学] 080502[080502] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1007/s40843-016-5063-3

馆 藏 号：203187192...