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Determining the sequence and backbone structure of “semi-statistical” copolymers as donor–acceptor polymers in organic solar cells
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Lawton, Sam, Warr, Daniel, Perdigao, Luis M. A., Chang, Yujing, Pron, Agnieszka, Costantini, Giovanni and Haddleton, David M. (2020) Determining the sequence and backbone structure of “semi-statistical” copolymers as donor–acceptor polymers in organic solar cells. Sustainable Energy & Fuels, 4 (4). pp. 2026-2034. doi:10.1039/c9se01261c ISSN 2398-4902.
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Official URL: https://doi.org/10.1039/C9SE01261C
Abstract
Organic photovoltaics (OPVs) are attracting significant attention due to the growing demand for economically viable and renewable energy sources. With efficiencies exceeding 16.5%, single junction bulk heterojunction (BHJ) devices are amongst the most promising and are nearing commercialisation. One recent avenue of research has focused on statistical conjugated copolymers. However, a detailed investigation as to why these materials can achieve higher power conversion efficiencies than their regular alternating counterparts is seldom reported. This work describes an investigation into donor–acceptor polymers demonstrating how differing monomer activities can lead to differing microstructures in a simple batch reaction, which in turn demonstrates promising optoelectronic and morphological properties required for organic photovoltaic devices. A one pot condensation polymerisation reaction with three monomers leads to an ABA triblock structure from differing monomer reactivities. This structure in turn leads to visualised phase separation which is possibly linked to an increase in performance. Further to this we report on the reliability of the Stille coupling for the synthesis of conjugated polymers.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | |||||||||
| SWORD Depositor: | Library Publications Router | |||||||||
| Library of Congress Subject Headings (LCSH): | Organic electronics , Photovoltaic power generation , Solar cells , Conjugated polymers , Organic semiconductors | |||||||||
| Journal or Publication Title: | Sustainable Energy & Fuels | |||||||||
| Publisher: | Royal Society of Chemistry (RSC) | |||||||||
| ISSN: | 2398-4902 | |||||||||
| Official Date: | 18 February 2020 | |||||||||
| Dates: |
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| Volume: | 4 | |||||||||
| Number: | 4 | |||||||||
| Page Range: | pp. 2026-2034 | |||||||||
| DOI: | 10.1039/c9se01261c | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Reuse Statement (publisher, data, author rights): | ** Article version: AM ** From Crossref via Jisc Publications Router ** Licence for AM version of this article starting on 18-02-2021: http://rsc.li/journals-terms-of-use | |||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||
| Date of first compliant deposit: | 24 April 2020 | |||||||||
| Date of first compliant Open Access: | 18 February 2021 | |||||||||
| RIOXX Funder/Project Grant: |
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