Issue 27, 2023

Regioregular polymerized small-molecule acceptors for high-performance all-polymer solar cells

Abstract

All-polymer solar cells (all-PSCs) have attracted increasing attention because of their distinctive features of superior morphological stability and mechanical durability. In recent years, all-PSCs have made rapid progress, thanks to the strategy of using polymerized small molecular acceptors (PSMAs). The isomerization of monomer of fused ring small molecule acceptors (SMAs) derived from the uncertain position of the bromine atoms on terminal groups leads to regiorandom PSMAs. This isomerization effect can significantly affect the absorption spectra, frontier molecular orbital energy level, crystallinity, mobility, and orientation of PSMAs. Integrating PSMAs with regioregularity endows the materials with better absorption coefficients, superior backbone ordering and optimal blend morphology compared to those of their regiorandom counterparts. Benefitting from these advantages, many regioregular PSMAs have been reported, and the PCE of binary single junction all-PSCs has exceeded 18%. In this review, the advances of regioregular PSMAs in the past three years for high-performance all-PSCs are summarized, and the guidelines for future structure design of PSMAs are discussed.

Graphical abstract: Regioregular polymerized small-molecule acceptors for high-performance all-polymer solar cells

Article information

Article type
Review Article
Submitted
13 апр. 2023
Accepted
18 јун. 2023
First published
22 јун. 2023

J. Mater. Chem. C, 2023,11, 9082-9092

Regioregular polymerized small-molecule acceptors for high-performance all-polymer solar cells

C. Gu, Y. Zhao, B. Liu, Y. Tian, Y. Li, S. Wang, S. Wen, J. Ma and X. Bao, J. Mater. Chem. C, 2023, 11, 9082 DOI: 10.1039/D3TC01298K

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