Non-fullerene acceptor photostability and its impact on organic solar cell lifetime

Clarke, Andrew; Luke, Joel; Meitzner, Rico; Wu, Jiaying; Wang, Yuming; Lee, Harrison; Speller, Emily M.; Bristow, Helen; Cha, Hyojung; Newman, Michael; Hooper, Katherine; Evans, Alex; Gao, Feng; Hoppe, Harald; McCulloch, Iain; Schubert, Ulrich S.; Watson, Trystan; Durrant, James; Tsoi, Wing Chung; Kim, Ji-Seon; Li, Zhe

doi:10.1016/j.xcrp.2021.100498

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Non-fullerene acceptor photostability and its impact on organic solar cell lifetime

Andrew Clarke, Joel Luke, Rico Meitzner, Jiaying Wu, Yuming Wang, Harrison Lee, Emily M. Speller

, Helen Bristow, Hyojung Cha, Michael Newman, Katherine Hooper, Alex Evans, Feng Gao, Harald Hoppe, Iain McCulloch, Ulrich S. Schubert, Trystan Watson

, James Durrant

, Wing Chung Tsoi

, Ji-Seon Kim, Zhe Li

Cell Reports Physical Science, Volume: 2, Issue: 7, Start page: 100498

Swansea University Authors: Andrew Clarke, Harrison Lee, Emily M. Speller , Michael Newman, Katherine Hooper, Trystan Watson , James Durrant , Wing Chung Tsoi

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DOI (Published version): 10.1016/j.xcrp.2021.100498

Abstract

The development of non-fullerene acceptors (NFAs) has facilitated the realization of efficient organic solar cells (OSCs) with minimal burn-in losses and excellent long-term stability. However, the role of NFA molecular structures on device stability remains unclear, limiting commercialization of NF...

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Published in:	Cell Reports Physical Science
ISSN:	2666-3864
Published:	Elsevier BV 2021
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa57328
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first_indexed	2021-07-15T09:34:05Z
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Speller</name><active>true</active><ethesisStudent>true</ethesisStudent></author><author><sid>051a4bb1b12de491967ad8f0a0bece3c</sid><firstname>Michael</firstname><surname>Newman</surname><name>Michael Newman</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>3607f6787dc810c0ed1fdc49ea2b5e63</sid><firstname>Katherine</firstname><surname>Hooper</surname><name>Katherine Hooper</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>a210327b52472cfe8df9b8108d661457</sid><ORCID>0000-0002-8015-1436</ORCID><firstname>Trystan</firstname><surname>Watson</surname><name>Trystan Watson</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>f3dd64bc260e5c07adfa916c27dbd58a</sid><ORCID>0000-0001-8353-7345</ORCID><firstname>James</firstname><surname>Durrant</surname><name>James Durrant</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>7e5f541df6635a9a8e1a579ff2de5d56</sid><ORCID>0000-0003-3836-5139</ORCID><firstname>Wing Chung</firstname><surname>Tsoi</surname><name>Wing Chung Tsoi</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2021-07-15</date><deptcode>FGSEN</deptcode><abstract>The development of non-fullerene acceptors (NFAs) has facilitated the realization of efficient organic solar cells (OSCs) with minimal burn-in losses and excellent long-term stability. However, the role of NFA molecular structures on device stability remains unclear, limiting commercialization of NFA-based OSCs. Herein, the photostability of 10 OSC devices, fabricated with various NFAs (O-IDTBR, EH-IDTBR, ITIC, and ITIC-M) blended with donor polymers (PTB7-Th, PffBT4T-2OD, and PBDB-T), is investigated. O-IDTBR and EH-IDTBR form highly stable devices with all three polymers, whereas ITIC and ITIC-M devices suffer from burn-in losses and long-term degradation. Conformational instability is found to be responsible for the poor photostability of ITIC and ITIC-M, resulting in poor device stability. Twisting and potential breakage of the chemical bond that links the end group to the main backbone of ITIC and ITIC-M molecules causes undesirable conformational changes. Potential strategies to overcome such detrimental photo-induced conformational changes in NFAs are proposed.</abstract><type>Journal Article</type><journal>Cell Reports Physical Science</journal><volume>2</volume><journalNumber>7</journalNumber><paginationStart>100498</paginationStart><paginationEnd/><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2666-3864</issnPrint><issnElectronic/><keywords>molecular conformation, non-fullerene acceptors, photostability, organic photovoltaics, ITIC stability, IDTBR stability, Raman spectroscopy, OPV stability</keywords><publishedDay>21</publishedDay><publishedMonth>7</publishedMonth><publishedYear>2021</publishedYear><publishedDate>2021-07-21</publishedDate><doi>10.1016/j.xcrp.2021.100498</doi><url/><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm>SU Library paid the OA fee (TA Institutional Deal)</apcterm><funders>The authors thank all sources of funding that made this work possible. A.J.C. and W.C.T. acknowledge funding from the European Social Fund via the Welsh Government and EPSRC project EP/L015099/1. J.L. and J.-S.K. thank UK EPSRC for the Plastic Electronics Centre for Doctoral Training (EP/L016702/1) and ATIP Programme grant (EP/T028513/1) and CSEM Brasil for a CASE studentship. This research was also supported by the Global Research Laboratory Program of the National Research Foundation (NRF), funded by the Ministry of Science, ICT & Future Planning (NRF-2017K1A1A2013153). E.M.S. thanks the National Research Network in Advanced Engineering and Materials. J.R.D. and J.W. thank the UKRI Global Challenge Research Fund project, SUNRISE (EP/P032591/1). H.B. and I.M. acknowledge financial support from KAUST, including Office of Sponsored Research (OSR) awards OSR-2018-CRG/CCF-3079, OSR-2019-CRG8-4086, and OSR-2018-CRG7-3749, and funding from European Social Fund, European Union CSEM Brasil, Brazil European Research Council, European Union ERC Synergy Grant SC2 (610115), the European Union’s Horizon 2020 research and innovation programme under grant agreement 952911, project BOOSTER and grant agreement 862474, project RoLA-FLEX, and EPSRC project EP/T026219/1. Z.L. acknowledges EPSRC project EP/S020748/1.</funders><projectreference/><lastEdited>2022-10-31T16:48:04.2832308</lastEdited><Created>2021-07-15T10:31:11.7166734</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Uncategorised</level></path><authors><author><firstname>Andrew</firstname><surname>Clarke</surname><order>1</order></author><author><firstname>Joel</firstname><surname>Luke</surname><order>2</order></author><author><firstname>Rico</firstname><surname>Meitzner</surname><order>3</order></author><author><firstname>Jiaying</firstname><surname>Wu</surname><order>4</order></author><author><firstname>Yuming</firstname><surname>Wang</surname><order>5</order></author><author><firstname>Harrison</firstname><surname>Lee</surname><orcid/><order>6</order></author><author><firstname>Emily M.</firstname><surname>Speller</surname><orcid>0000-0001-6555-9727</orcid><order>7</order></author><author><firstname>Helen</firstname><surname>Bristow</surname><order>8</order></author><author><firstname>Hyojung</firstname><surname>Cha</surname><order>9</order></author><author><firstname>Michael</firstname><surname>Newman</surname><order>10</order></author><author><firstname>Katherine</firstname><surname>Hooper</surname><order>11</order></author><author><firstname>Alex</firstname><surname>Evans</surname><order>12</order></author><author><firstname>Feng</firstname><surname>Gao</surname><order>13</order></author><author><firstname>Harald</firstname><surname>Hoppe</surname><order>14</order></author><author><firstname>Iain</firstname><surname>McCulloch</surname><order>15</order></author><author><firstname>Ulrich S.</firstname><surname>Schubert</surname><order>16</order></author><author><firstname>Trystan</firstname><surname>Watson</surname><orcid>0000-0002-8015-1436</orcid><order>17</order></author><author><firstname>James</firstname><surname>Durrant</surname><orcid>0000-0001-8353-7345</orcid><order>18</order></author><author><firstname>Wing Chung</firstname><surname>Tsoi</surname><orcid>0000-0003-3836-5139</orcid><order>19</order></author><author><firstname>Ji-Seon</firstname><surname>Kim</surname><order>20</order></author><author><firstname>Zhe</firstname><surname>Li</surname><order>21</order></author></authors><documents><document><filename>57328__20408__45bb3fb7e12a49f396c3a28b3adb5cf4.pdf</filename><originalFilename>57328.pdf</originalFilename><uploaded>2021-07-15T10:33:25.7901180</uploaded><type>Output</type><contentLength>5306952</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>©2021 The Authors. 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spelling	2022-10-31T16:48:04.2832308 v2 57328 2021-07-15 Non-fullerene acceptor photostability and its impact on organic solar cell lifetime 2d92415aa8add4d9217f035c38ad9c98 Andrew Clarke Andrew Clarke true false 0ef65494d0dda7f6aea5ead8bb6ce466 Harrison Lee Harrison Lee true false b78937bf050e1cd6f6da7d4fe9a75059 0000-0001-6555-9727 Emily M. Speller Emily M. Speller true true 051a4bb1b12de491967ad8f0a0bece3c Michael Newman Michael Newman true false 3607f6787dc810c0ed1fdc49ea2b5e63 Katherine Hooper Katherine Hooper true false a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false f3dd64bc260e5c07adfa916c27dbd58a 0000-0001-8353-7345 James Durrant James Durrant true false 7e5f541df6635a9a8e1a579ff2de5d56 0000-0003-3836-5139 Wing Chung Tsoi Wing Chung Tsoi true false 2021-07-15 FGSEN The development of non-fullerene acceptors (NFAs) has facilitated the realization of efficient organic solar cells (OSCs) with minimal burn-in losses and excellent long-term stability. However, the role of NFA molecular structures on device stability remains unclear, limiting commercialization of NFA-based OSCs. Herein, the photostability of 10 OSC devices, fabricated with various NFAs (O-IDTBR, EH-IDTBR, ITIC, and ITIC-M) blended with donor polymers (PTB7-Th, PffBT4T-2OD, and PBDB-T), is investigated. O-IDTBR and EH-IDTBR form highly stable devices with all three polymers, whereas ITIC and ITIC-M devices suffer from burn-in losses and long-term degradation. Conformational instability is found to be responsible for the poor photostability of ITIC and ITIC-M, resulting in poor device stability. Twisting and potential breakage of the chemical bond that links the end group to the main backbone of ITIC and ITIC-M molecules causes undesirable conformational changes. Potential strategies to overcome such detrimental photo-induced conformational changes in NFAs are proposed. Journal Article Cell Reports Physical Science 2 7 100498 Elsevier BV 2666-3864 molecular conformation, non-fullerene acceptors, photostability, organic photovoltaics, ITIC stability, IDTBR stability, Raman spectroscopy, OPV stability 21 7 2021 2021-07-21 10.1016/j.xcrp.2021.100498 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University SU Library paid the OA fee (TA Institutional Deal) The authors thank all sources of funding that made this work possible. A.J.C. and W.C.T. acknowledge funding from the European Social Fund via the Welsh Government and EPSRC project EP/L015099/1. J.L. and J.-S.K. thank UK EPSRC for the Plastic Electronics Centre for Doctoral Training (EP/L016702/1) and ATIP Programme grant (EP/T028513/1) and CSEM Brasil for a CASE studentship. This research was also supported by the Global Research Laboratory Program of the National Research Foundation (NRF), funded by the Ministry of Science, ICT & Future Planning (NRF-2017K1A1A2013153). E.M.S. thanks the National Research Network in Advanced Engineering and Materials. J.R.D. and J.W. thank the UKRI Global Challenge Research Fund project, SUNRISE (EP/P032591/1). H.B. and I.M. acknowledge financial support from KAUST, including Office of Sponsored Research (OSR) awards OSR-2018-CRG/CCF-3079, OSR-2019-CRG8-4086, and OSR-2018-CRG7-3749, and funding from European Social Fund, European Union CSEM Brasil, Brazil European Research Council, European Union ERC Synergy Grant SC2 (610115), the European Union’s Horizon 2020 research and innovation programme under grant agreement 952911, project BOOSTER and grant agreement 862474, project RoLA-FLEX, and EPSRC project EP/T026219/1. Z.L. acknowledges EPSRC project EP/S020748/1. 2022-10-31T16:48:04.2832308 2021-07-15T10:31:11.7166734 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Andrew Clarke 1 Joel Luke 2 Rico Meitzner 3 Jiaying Wu 4 Yuming Wang 5 Harrison Lee 6 Emily M. Speller 0000-0001-6555-9727 7 Helen Bristow 8 Hyojung Cha 9 Michael Newman 10 Katherine Hooper 11 Alex Evans 12 Feng Gao 13 Harald Hoppe 14 Iain McCulloch 15 Ulrich S. Schubert 16 Trystan Watson 0000-0002-8015-1436 17 James Durrant 0000-0001-8353-7345 18 Wing Chung Tsoi 0000-0003-3836-5139 19 Ji-Seon Kim 20 Zhe Li 21 57328__20408__45bb3fb7e12a49f396c3a28b3adb5cf4.pdf 57328.pdf 2021-07-15T10:33:25.7901180 Output 5306952 application/pdf Version of Record true ©2021 The Authors. This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime
spellingShingle	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime Andrew Clarke Harrison Lee Emily M. Speller Michael Newman Katherine Hooper Trystan Watson James Durrant Wing Chung Tsoi
title_short	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime
title_full	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime
title_fullStr	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime
title_full_unstemmed	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime
title_sort	Non-fullerene acceptor photostability and its impact on organic solar cell lifetime
author_id_str_mv	2d92415aa8add4d9217f035c38ad9c98 0ef65494d0dda7f6aea5ead8bb6ce466 b78937bf050e1cd6f6da7d4fe9a75059 051a4bb1b12de491967ad8f0a0bece3c 3607f6787dc810c0ed1fdc49ea2b5e63 a210327b52472cfe8df9b8108d661457 f3dd64bc260e5c07adfa916c27dbd58a 7e5f541df6635a9a8e1a579ff2de5d56
author_id_fullname_str_mv	2d92415aa8add4d9217f035c38ad9c98_*_Andrew Clarke 0ef65494d0dda7f6aea5ead8bb6ce466__Harrison Lee b78937bf050e1cd6f6da7d4fe9a75059__Emily M. Speller 051a4bb1b12de491967ad8f0a0bece3c__Michael Newman 3607f6787dc810c0ed1fdc49ea2b5e63__Katherine Hooper a210327b52472cfe8df9b8108d661457__Trystan Watson f3dd64bc260e5c07adfa916c27dbd58a__James Durrant 7e5f541df6635a9a8e1a579ff2de5d56_*_Wing Chung Tsoi
author	Andrew Clarke Harrison Lee Emily M. Speller Michael Newman Katherine Hooper Trystan Watson James Durrant Wing Chung Tsoi
author2	Andrew Clarke Joel Luke Rico Meitzner Jiaying Wu Yuming Wang Harrison Lee Emily M. Speller Helen Bristow Hyojung Cha Michael Newman Katherine Hooper Alex Evans Feng Gao Harald Hoppe Iain McCulloch Ulrich S. Schubert Trystan Watson James Durrant Wing Chung Tsoi Ji-Seon Kim Zhe Li
format	Journal article
container_title	Cell Reports Physical Science
container_volume	2
container_issue	7
container_start_page	100498
publishDate	2021
institution	Swansea University
issn	2666-3864
doi_str_mv	10.1016/j.xcrp.2021.100498
publisher	Elsevier BV
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 - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
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description	The development of non-fullerene acceptors (NFAs) has facilitated the realization of efficient organic solar cells (OSCs) with minimal burn-in losses and excellent long-term stability. However, the role of NFA molecular structures on device stability remains unclear, limiting commercialization of NFA-based OSCs. Herein, the photostability of 10 OSC devices, fabricated with various NFAs (O-IDTBR, EH-IDTBR, ITIC, and ITIC-M) blended with donor polymers (PTB7-Th, PffBT4T-2OD, and PBDB-T), is investigated. O-IDTBR and EH-IDTBR form highly stable devices with all three polymers, whereas ITIC and ITIC-M devices suffer from burn-in losses and long-term degradation. Conformational instability is found to be responsible for the poor photostability of ITIC and ITIC-M, resulting in poor device stability. Twisting and potential breakage of the chemical bond that links the end group to the main backbone of ITIC and ITIC-M molecules causes undesirable conformational changes. Potential strategies to overcome such detrimental photo-induced conformational changes in NFAs are proposed.
published_date	2021-07-21T04:12:59Z
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Non-fullerene acceptor photostability and its impact on organic solar cell lifetime

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