A polymer library enables the rapid identification of a highly scalable and efficient donor material for organic solar cells
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
The dramatic improvement of the PCE (power conversion efficiency) of organic photovoltaic devices in the past few years has been driven by the development of new polymer donor materials and non-fullerene acceptors (NFAs). In the design of such materials synthetic scalability is often not considered, and hence complicated synthetic protocols are typical for high-performing materials. Here we report an approach to readily introduce a variety of solubilizing groups into a benzo[c][1,2,5]thiadiazole acceptor comonomer. This allowed for the ready preparation of a library of eleven donor polymers of varying side chains and comonomers, which facilitated a rapid screening of properties and photovoltaic device performance. Donor FO6-T emerged as the optimal material, exhibiting good solubility in chlorinated and non-chlorinated solvents and achieving 15.4% PCE with L8BO as the acceptor (15.2% with Y6) and good device stability. FO6-T was readily prepared on the gram scale, and synthetic complexity (SC) analysis highlighted FO6-T as an attractive donor polymer for potential large scale applications.
Date Issued
2023-10-01
Date Acceptance
2023-07-31
Citation
Materials horizons, 2023, 10 (10), pp.4202-4212
ISSN
2051-6347
Publisher
Royal Society of Chemistry
Start Page
4202
End Page
4212
Journal / Book Title
Materials horizons
Volume
10
Issue
10
Copyright Statement
This journal is © The Royal Society of Chemistry 2023. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001051968100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
BANDGAP CONJUGATED POLYMER
CHAIN MODIFICATION
Chemistry
Chemistry, Multidisciplinary
ENERGY
Materials Science
Materials Science, Multidisciplinary
MORPHOLOGY
OPTOELECTRONIC PROPERTIES
PERFORMANCE
PHOTOVOLTAIC APPLICATIONS
Physical Sciences
RATIONAL DESIGN
RECENT PROGRESS
RECOMBINATION
Science & Technology
Technology
Publication Status
Published
Date Publish Online
2023-08-02