Issue 9, 2018
From the journal:

Materials Chemistry Frontiers

A heptacyclic carbon–oxygen-bridged ladder-type building block for A–D–A acceptors†

Ke Jin,‡ab   Chenyu Deng,‡b   Lei Zhang,b   Dan Li,b   Ting Li,b   Feng Wang,*a   Yongbo Yuan,*c   Zuo Xiao ORCID logo *b  and  Liming Ding ORCID logo *b  

* Corresponding authors

a Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430073, China
E-mail: psfwang@wit.edu.cn

b Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
E-mail: xiaoz@nanoctr.cn, ding@nanoctr.cn

c School of Physics & Electronics, Central South University, Changsha 410083, China
E-mail: yuanyb@csu.edu.cn

Abstract

A heptacyclic carbon–oxygen-bridged ladder-type unit, COi7, was designed. Two corresponding nonfullerene acceptors, COi7IC and COi7DFIC, were developed. The single crystal structure of COi7IC indicates an S-shaped backbone and a packing via π–π interaction of the end groups. PTB7-Th:COi7DFIC solar cells gave a power conversion efficiency of 8.32%, with a decent fill factor of 71.9%.

Graphical abstract: A heptacyclic carbon–oxygen-bridged ladder-type building block for A–D–A acceptors

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Article information

DOI
https://doi.org/10.1039/C8QM00285A
Article type
Research Article
Submitted
08 juin 2018
Accepted
13 juil. 2018
First published
13 juil. 2018

Mater. Chem. Front., 2018,2, 1716-1719

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A heptacyclic carbon–oxygen-bridged ladder-type building block for A–D–A acceptors

K. Jin, C. Deng, L. Zhang, D. Li, T. Li, F. Wang, Y. Yuan, Z. Xiao and L. Ding, Mater. Chem. Front., 2018, 2, 1716 DOI: 10.1039/C8QM00285A

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