Issue 8, 2022
From the journal:

Journal of Materials Chemistry C

Non-fused molecular photovoltaic acceptor with a planar core structure enabled by bulky and embracing-type side chains†

Zhong-Xin Xue,a   Jin Fang,*b   Jia Li,c   Di Zhang,a   Zi-Wen Xu,a   Li-Na Liu,ad   Jianhua Yao,*cd   Chang-Qi Ma ORCID logo b  and  Wei-Shi Li ORCID logo *ad  

* Corresponding authors

a Key Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
E-mail: liws@mail.sioc.ac.cn

b I-Lab & Printable Electronics Research Centre, Suzhou Institute of Nano-tech and nano-bionics, Chinese Academy of Sciences, No. 398 Ruoshui Road, SEID, Suzhou Industrial Park, Suzhou, Jiangsu Province, P. R. China
E-mail: jfang2020@sinano.ac.cn

c CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
E-mail: yaojh@mail.sioc.ac.cn

d Engineering Research Center of Zhengzhou for High Performance Organic Functional Materials, Zhengzhou Institute of Technology, 6 Yingcai Street, Huiji District, Zhengzhou, Henan 450044, P. R. China

Abstract

A strategy involving bulky and “embracing”-type side chains for keeping the planarity of non-fused units was proposed and applied to the design of a non-fullerene acceptor (NFA) molecule. The NFA molecule iPrBT-NFA bearing a 2,2′-bithiophene core with two bulky and embracing-type 2,4,6-triisopropylphenyl substituents at its 3,3′ positions was demonstrated to display a planar core structure, red-shifted light absorption, finely regulated aggregation and much better photovoltaic performance than that shown by a reference molecule (DeBT-NFA) having the same backbone but with long alkyl side chains.

Graphical abstract: Non-fused molecular photovoltaic acceptor with a planar core structure enabled by bulky and embracing-type side chains

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Article information

DOI
https://doi.org/10.1039/D1TC05550J
Article type
Communication
Submitted
17 Nov 2021
Accepted
28 Jan 2022
First published
31 Jan 2022

J. Mater. Chem. C, 2022,10, 2945-2949

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Non-fused molecular photovoltaic acceptor with a planar core structure enabled by bulky and embracing-type side chains

Z. Xue, J. Fang, J. Li, D. Zhang, Z. Xu, L. Liu, J. Yao, C. Ma and W. Li, J. Mater. Chem. C, 2022, 10, 2945 DOI: 10.1039/D1TC05550J

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