Issue 43, 2020

Direct arylation polycondensed conjugated polyelectrolytes as universal electron transport layers for highly efficient polymer solar cells

Abstract

We demonstrate a series of direct arylation polycondensed conjugated polyelectrolytes (CPEs) for application in universal and thickness-insensitive electron transport materials (ETMs) of highly efficient polymer solar cells (PSCs). The energy levels, absorption spectra, and self-doping behaviors of these CPEs are altered by the substituted alkyl and alkoxy ammonium side chains. PSCs with three donor:acceptor combinations as active layers are examined and the results indicate that these CPEs are capable of achieving high efficiency for both fullerene PSCs and non-fullerene PSCs. The excellent capability of CPEs for interface modification achieves high-performance PM6:Y6-based PSCs with a PCE of over 16%. Moreover, the high electron mobilities of these CPEs endow them with high performance at thicknesses ranging from 10 nm to 100 nm, indicating that these CPEs are good candidates as universal and thickness-insensitive ETMs for PSCs.

Graphical abstract: Direct arylation polycondensed conjugated polyelectrolytes as universal electron transport layers for highly efficient polymer solar cells

Supplementary files

Article information

Article type
Paper
Submitted
29 juin 2020
Accepted
03 sept. 2020
First published
04 sept. 2020

J. Mater. Chem. C, 2020,8, 15158-15167

Direct arylation polycondensed conjugated polyelectrolytes as universal electron transport layers for highly efficient polymer solar cells

Z. Hu, Z. Chen, J. Jing, Y. Liang, Y. Bai, X. Liu, F. Huang and Y. Cao, J. Mater. Chem. C, 2020, 8, 15158 DOI: 10.1039/D0TC03066J

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