Issue 2, 2019

Pairing 1D/2D-conjugation donors/acceptors towards high-performance organic solar cells

Abstract

Two polymer donors, FTAZ and J71, and two fused-ring electron acceptors, ITIC1 and ITIC2, are used to investigate the effects of conjugation dimension on the performance of organic solar cells (OSCs). FTAZ and J71, and ITIC1 and ITIC2 share the same molecular backbone, respectively, while J71 and ITIC2 possess conjugated thienyl side chains. The addition of conjugated side chains slightly red-shifts the absorption spectra and lowers the bandgap due to the extended 2D conjugation. Conjugated side chains on the acceptor induce the self-aggregation of the acceptors, while conjugated side chains on the donor increase the miscibility of the donors and acceptors, thus optimizing the morphology of the active layers. The blends based on mixed combinations, namely 1D donor/2D acceptor and 2D donor/1D acceptor, show better performance relative to 1D donor/1D acceptor and 2D donor/2D acceptor.

Graphical abstract: Pairing 1D/2D-conjugation donors/acceptors towards high-performance organic solar cells

Supplementary files

Article information

Article type
Research Article
Submitted
08 okt 2018
Accepted
10 dec 2018
First published
11 dec 2018

Mater. Chem. Front., 2019,3, 276-283

Author version available

Pairing 1D/2D-conjugation donors/acceptors towards high-performance organic solar cells

J. Wang, Y. Xiao, W. Wang, C. Yan, J. Rech, M. Zhang, W. You, X. Lu and X. Zhan, Mater. Chem. Front., 2019, 3, 276 DOI: 10.1039/C8QM00512E

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