Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications

Clarke, Andrew; Yang, Emily J.; Thomas, Suzanne K.; Lee, Harrison; Hunter, Ann; Lan, Weixia; Carnie, Matt; Kim, Ji‐Seon; Tsoi, Wing Chung

doi:10.1002/aesr.202300285

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Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications

Andrew Clarke, Emily J. Yang, Suzanne K. Thomas, Harrison Lee, Ann Hunter, Weixia Lan, Matt Carnie

, Ji‐Seon Kim, Wing Chung Tsoi

Advanced Energy and Sustainability Research, Volume: 5, Issue: 7

Swansea University Authors: Andrew Clarke, Harrison Lee, Matt Carnie , Wing Chung Tsoi

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DOI (Published version): 10.1002/aesr.202300285

Abstract

Organic photovoltaics (OPVs) show great promise for both outdoor and indoor applications. However, there remains a lack of understanding around the stability of OPVs, particularly for indoor applications. In this work, the photostability of the poly[(thiophene)-alt-(6,7-diﬂuoro-2-(2-hexyldecyloxy)qu...

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Published in:	Advanced Energy and Sustainability Research
ISSN:	2699-9412 2699-9412
Published:	Wiley 2024
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However, there remains a lack of understanding around the stability of OPVs, particularly for indoor applications. In this work, the photostability of the poly[(thiophene)-alt-(6,7-diﬂuoro-2-(2-hexyldecyloxy)quinoxaline)]:2,2′-((2Z,2′Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-2,7-diyl)bis(methanylylidene))bis(3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile blend is investigated for both outdoor and indoor applications. Photostability is found to vary drastically with illumination intensity. Devices under high-intensity white light-emitting diode (LED) illumination, with their short-circuit current density (JSC) matching JSC–EQE for AM1.5 G illumination, lose 42% of their initial performance after 30 days of illumination. Contrastingly, after almost 47 days of illumination devices under 1000 lux white LED illumination show no loss in performance. The poor photostability under 1 sun illumination is linked to the poor photostability of IDIC. Through Raman spectroscopy and mass spectrometry, IDIC is found to suffer from photoisomerization, which detrimentally impacts light absorption and carrier extraction. 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E.J.Y. and J.S.K. wouldlike to thank EPSRC ATIP and DTP funding. S.K.T. and M.C. would liketo thank ERDF for funding SPARC II. W.C.T. and W.L. would like toacknowledge the Foreign Expert Foundation of China funding (grantno. 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spelling	v2 65783 2024-03-06 Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications 2d92415aa8add4d9217f035c38ad9c98 Andrew Clarke Andrew Clarke true false 0ef65494d0dda7f6aea5ead8bb6ce466 Harrison Lee Harrison Lee true false 73b367694366a646b90bb15db32bb8c0 0000-0002-4232-1967 Matt Carnie Matt Carnie true false 7e5f541df6635a9a8e1a579ff2de5d56 0000-0003-3836-5139 Wing Chung Tsoi Wing Chung Tsoi true false 2024-03-06 Organic photovoltaics (OPVs) show great promise for both outdoor and indoor applications. However, there remains a lack of understanding around the stability of OPVs, particularly for indoor applications. In this work, the photostability of the poly[(thiophene)-alt-(6,7-diﬂuoro-2-(2-hexyldecyloxy)quinoxaline)]:2,2′-((2Z,2′Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-2,7-diyl)bis(methanylylidene))bis(3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile blend is investigated for both outdoor and indoor applications. Photostability is found to vary drastically with illumination intensity. Devices under high-intensity white light-emitting diode (LED) illumination, with their short-circuit current density (JSC) matching JSC–EQE for AM1.5 G illumination, lose 42% of their initial performance after 30 days of illumination. Contrastingly, after almost 47 days of illumination devices under 1000 lux white LED illumination show no loss in performance. The poor photostability under 1 sun illumination is linked to the poor photostability of IDIC. Through Raman spectroscopy and mass spectrometry, IDIC is found to suffer from photoisomerization, which detrimentally impacts light absorption and carrier extraction. In this work, it is highlighted that under low light levels, the requirement of intrinsic material photostability may be less stringent. Journal Article Advanced Energy and Sustainability Research 5 7 Wiley 2699-9412 2699-9412 IDIC; indoor applications; low light; organic photovoltaics; outdoor applications; photostability; Raman spectroscopy 5 7 2024 2024-07-05 10.1002/aesr.202300285 COLLEGE NANME COLLEGE CODE Swansea University SU Library paid the OA fee (TA Institutional Deal) A.J.C. and W.C.T. would like to acknowledge the Materials andManufacturing Academy (M2A) funding from the European SocialFund via the Welsh Government and EPSRC project EP/L015099/1, theUKRI funding via Innovate UK project 133701, the EPSRC ATIP funding(EP/T028513/1), and NMSF at Swansea University. E.J.Y. and J.S.K. wouldlike to thank EPSRC ATIP and DTP funding. S.K.T. and M.C. would liketo thank ERDF for funding SPARC II. W.C.T. and W.L. would like toacknowledge the Foreign Expert Foundation of China funding (grantno. G2023013014L). 2024-10-09T16:57:17.4959309 2024-03-06T18:04:01.0460990 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Andrew Clarke 1 Emily J. Yang 2 Suzanne K. Thomas 3 Harrison Lee 4 Ann Hunter 5 Weixia Lan 6 Matt Carnie 0000-0002-4232-1967 7 Ji‐Seon Kim 8 Wing Chung Tsoi 0000-0003-3836-5139 9 65783__29653__2b476fe796464367ba94b145debd803a.pdf Adv Energy and Sustain Res - 2024 - Clarke - Investigating the Photostability of Organic Photovoltaics for Indoor and.pdf 2024-03-06T18:05:48.0998307 Output 2162230 application/pdf Version of Record true © 2024 The Authors. This is an open access article under the terms of the Creative Commons Attribution License. true eng https://creativecommons.org/licenses/by/4.0/
title	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications
spellingShingle	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications Andrew Clarke Harrison Lee Matt Carnie Wing Chung Tsoi
title_short	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications
title_full	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications
title_fullStr	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications
title_full_unstemmed	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications
title_sort	Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications
author_id_str_mv	2d92415aa8add4d9217f035c38ad9c98 0ef65494d0dda7f6aea5ead8bb6ce466 73b367694366a646b90bb15db32bb8c0 7e5f541df6635a9a8e1a579ff2de5d56
author_id_fullname_str_mv	2d92415aa8add4d9217f035c38ad9c98_*_Andrew Clarke 0ef65494d0dda7f6aea5ead8bb6ce466__Harrison Lee 73b367694366a646b90bb15db32bb8c0__Matt Carnie 7e5f541df6635a9a8e1a579ff2de5d56_*_Wing Chung Tsoi
author	Andrew Clarke Harrison Lee Matt Carnie Wing Chung Tsoi
author2	Andrew Clarke Emily J. Yang Suzanne K. Thomas Harrison Lee Ann Hunter Weixia Lan Matt Carnie Ji‐Seon Kim Wing Chung Tsoi
format	Journal article
container_title	Advanced Energy and Sustainability Research
container_volume	5
container_issue	7
publishDate	2024
institution	Swansea University
issn	2699-9412 2699-9412
doi_str_mv	10.1002/aesr.202300285
publisher	Wiley
college_str	Faculty of Science and Engineering
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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
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description	Organic photovoltaics (OPVs) show great promise for both outdoor and indoor applications. However, there remains a lack of understanding around the stability of OPVs, particularly for indoor applications. In this work, the photostability of the poly[(thiophene)-alt-(6,7-diﬂuoro-2-(2-hexyldecyloxy)quinoxaline)]:2,2′-((2Z,2′Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b′]dithiophene-2,7-diyl)bis(methanylylidene))bis(3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile blend is investigated for both outdoor and indoor applications. Photostability is found to vary drastically with illumination intensity. Devices under high-intensity white light-emitting diode (LED) illumination, with their short-circuit current density (JSC) matching JSC–EQE for AM1.5 G illumination, lose 42% of their initial performance after 30 days of illumination. Contrastingly, after almost 47 days of illumination devices under 1000 lux white LED illumination show no loss in performance. The poor photostability under 1 sun illumination is linked to the poor photostability of IDIC. Through Raman spectroscopy and mass spectrometry, IDIC is found to suffer from photoisomerization, which detrimentally impacts light absorption and carrier extraction. In this work, it is highlighted that under low light levels, the requirement of intrinsic material photostability may be less stringent.
published_date	2024-07-05T16:57:15Z
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score	11.036553

Investigating the Photostability of Organic Photovoltaics for Indoor and Outdoor Applications

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