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Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents

Andrew Wadsworth, Raja S. Ashraf, Maged Abdelsamie, Sebastian Pont, Mark Little, Maximilian Moser, Zeinab Hamid, Marios Neophytou, Weimin Zhang, Aram Amassian, James Durrant, Derya Baran, Iain McCulloch

ACS Energy Letters, Volume: 2, Issue: 7, Pages: 1494 - 1500

Swansea University Author: James Durrant

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DOI (Published version): 10.1021/acsenergylett.7b00390

Abstract

With chlorinated solvents unlikely to be permitted for use in solution-processed organic solar cells in industry, there must be a focus on developing nonchlorinated solvent systems. Here we report high-efficiency devices utilizing a low-bandgap donor polymer (PffBT4T-2DT) and a nonfullerene acceptor...

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Published in: ACS Energy Letters
ISSN: 2380-8195 2380-8195
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa37057
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last_indexed 2018-02-09T05:30:04Z
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spelling 2017-11-27T09:30:08.2452758 v2 37057 2017-11-27 Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents f3dd64bc260e5c07adfa916c27dbd58a James Durrant James Durrant true false 2017-11-27 With chlorinated solvents unlikely to be permitted for use in solution-processed organic solar cells in industry, there must be a focus on developing nonchlorinated solvent systems. Here we report high-efficiency devices utilizing a low-bandgap donor polymer (PffBT4T-2DT) and a nonfullerene acceptor (EH-IDTBR) from hydrocarbon solvents and without using additives. When mesitylene was used as the solvent, rather than chlorobenzene, an improved power conversion efficiency (11.1%) was achieved without the need for pre- or post-treatments. Despite altering the processing conditions to environmentally friendly solvents and room-temperature coating, grazing incident X-ray measurements confirmed that active layers processed from hydrocarbon solvents retained the robust nanomorphology obtained with hot-processed chlorinated solvents. The main advantages of hydrocarbon solvent-processed devices, besides the improved efficiencies, were the reproducibility and storage lifetime of devices. Mesitylene devices showed better reproducibility and shelf life up to 4000 h with PCE dropping by only 8% of its initial value. Journal Article ACS Energy Letters 2 7 1494 1500 2380-8195 2380-8195 14 7 2017 2017-07-14 10.1021/acsenergylett.7b00390 COLLEGE NANME COLLEGE CODE Swansea University 2017-11-27T09:30:08.2452758 2017-11-27T09:27:04.9541662 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Andrew Wadsworth 1 Raja S. Ashraf 2 Maged Abdelsamie 3 Sebastian Pont 4 Mark Little 5 Maximilian Moser 6 Zeinab Hamid 7 Marios Neophytou 8 Weimin Zhang 9 Aram Amassian 10 James Durrant 11 Derya Baran 12 Iain McCulloch 13
title Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
spellingShingle Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
James Durrant
title_short Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
title_full Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
title_fullStr Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
title_full_unstemmed Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
title_sort Highly Efficient and Reproducible Nonfullerene Solar Cells from Hydrocarbon Solvents
author_id_str_mv f3dd64bc260e5c07adfa916c27dbd58a
author_id_fullname_str_mv f3dd64bc260e5c07adfa916c27dbd58a_***_James Durrant
author James Durrant
author2 Andrew Wadsworth
Raja S. Ashraf
Maged Abdelsamie
Sebastian Pont
Mark Little
Maximilian Moser
Zeinab Hamid
Marios Neophytou
Weimin Zhang
Aram Amassian
James Durrant
Derya Baran
Iain McCulloch
format Journal article
container_title ACS Energy Letters
container_volume 2
container_issue 7
container_start_page 1494
publishDate 2017
institution Swansea University
issn 2380-8195
2380-8195
doi_str_mv 10.1021/acsenergylett.7b00390
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 0
active_str 0
description With chlorinated solvents unlikely to be permitted for use in solution-processed organic solar cells in industry, there must be a focus on developing nonchlorinated solvent systems. Here we report high-efficiency devices utilizing a low-bandgap donor polymer (PffBT4T-2DT) and a nonfullerene acceptor (EH-IDTBR) from hydrocarbon solvents and without using additives. When mesitylene was used as the solvent, rather than chlorobenzene, an improved power conversion efficiency (11.1%) was achieved without the need for pre- or post-treatments. Despite altering the processing conditions to environmentally friendly solvents and room-temperature coating, grazing incident X-ray measurements confirmed that active layers processed from hydrocarbon solvents retained the robust nanomorphology obtained with hot-processed chlorinated solvents. The main advantages of hydrocarbon solvent-processed devices, besides the improved efficiencies, were the reproducibility and storage lifetime of devices. Mesitylene devices showed better reproducibility and shelf life up to 4000 h with PCE dropping by only 8% of its initial value.
published_date 2017-07-14T04:14:51Z
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score 11.089572

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