Issue 27, 2016

A simple perylene diimide derivative with a highly twisted geometry as an electron acceptor for efficient organic solar cells

Abstract

Perylene diimide (PDI), which features intense absorption, a low-lying energy level, and high electron mobility, is a promising building block for electron acceptors in organic solar cells (OSCs). However, this planar molecule has a strong tendency to form large aggregates during film formation which strongly limits its OSC performance. Herein, we report a new and simple PDI derivative, B(PDI)3, in which a central benzene unit is employed to connect three PDI arms. This compact arrangement of sterically bulky PDI moieties leads to a twisted molecular geometry of the resultant structure. This suppresses the strong crystallization tendency of PDI chromophores, owing to the broken molecular coplanarity and symmetry. Therefore, B(PDI)3 is applied as a non-fullerene acceptor in OSCs, providing a good power conversion efficiency of 5.65% when blended with the PTB7-Th donor.

Graphical abstract: A simple perylene diimide derivative with a highly twisted geometry as an electron acceptor for efficient organic solar cells

Supplementary files

Article information

Article type
Paper
Submitted
21 মে 2016
Accepted
13 জুন 2016
First published
14 জুন 2016

J. Mater. Chem. A, 2016,4, 10659-10665

A simple perylene diimide derivative with a highly twisted geometry as an electron acceptor for efficient organic solar cells

S. Li, W. Liu, C. Li, F. Liu, Y. Zhang, M. Shi, H. Chen and T. P. Russell, J. Mater. Chem. A, 2016, 4, 10659 DOI: 10.1039/C6TA04232E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements