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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 Orcid Logo, Helen Bristow, Hyojung Cha, Michael Newman, Katherine Hooper, Alex Evans, Feng Gao, Harald Hoppe, Iain McCulloch, Ulrich S. Schubert, Trystan Watson Orcid Logo, James Durrant Orcid Logo, Wing Chung Tsoi Orcid Logo, 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 Orcid Logo, Michael Newman, Katherine Hooper, Trystan Watson Orcid Logo, James Durrant Orcid Logo, Wing Chung Tsoi Orcid Logo

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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
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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/><lastEdited>2021-08-23T10:54:43.2091067</lastEdited><Created>2021-07-15T10:31:11.7166734</Created><path><level id="1">College of Engineering</level><level id="2">Engineering</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>&#xA9;2021 The Authors. 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spelling 2021-08-23T10:54:43.2091067 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 2021-08-23T10:54:43.2091067 2021-07-15T10:31:11.7166734 College of Engineering Engineering 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
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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 College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
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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 2021-07-21T04:13:24Z
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