Hexanary blends: a strategy towards thermally stable organic photovoltaics

Non-fullerene based organic solar cells display a high initial power conversion efficiency but continue to suffer from poor thermal stability, especially in case of devices with thick active layers. Mixing of five structurally similar acceptors with similar electron affinities, and blending with a d...

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Published in:Nature communications 2023-08, Vol.14 (1), p.4608-9, Article 4608
Main Authors: Paleti, Sri Harish Kumar, Hultmark, Sandra, Han, Jianhua, Wen, Yuanfan, Xu, Han, Chen, Si, Järsvall, Emmy, Jalan, Ishita, Villalva, Diego Rosas, Sharma, Anirudh, Khan, Jafar. I., Moons, Ellen, Li, Ruipeng, Yu, Liyang, Gorenflot, Julien, Laquai, Frédéric, Müller, Christian, Baran, Derya
Format: Article
Language:English
Subjects:
147/3
639/301/1005/1007
639/301/299/946
Chemistry - Physical Chemistry
Devices
Efficiency
electronic devices
Energy conversion efficiency
Fullerenes
Heterojunctions
Humanities and Social Sciences
Inert atmospheres
Kemi - fysikalisk kemi
MATERIALS SCIENCE
Mixtures
multidisciplinary
Photovoltaic cells
Photovoltaics
Polymers
Science
Science (multidisciplinary)
Solar cells
Thermal stability
Thickness
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cited_by cdi_FETCH-LOGICAL-c681t-cf564a8b2c05f94f9075a3d0cb19f149ab152ef5c3640fca0f3ef4d4dc7a87f03
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container_title Nature communications
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creator Paleti, Sri Harish Kumar
Hultmark, Sandra
Han, Jianhua
Wen, Yuanfan
Xu, Han
Chen, Si
Järsvall, Emmy
Jalan, Ishita
Villalva, Diego Rosas
Sharma, Anirudh
Khan, Jafar. I.
Moons, Ellen
Li, Ruipeng
Yu, Liyang
Gorenflot, Julien
Laquai, Frédéric
Müller, Christian
Baran, Derya
description Non-fullerene based organic solar cells display a high initial power conversion efficiency but continue to suffer from poor thermal stability, especially in case of devices with thick active layers. Mixing of five structurally similar acceptors with similar electron affinities, and blending with a donor polymer is explored, yielding devices with a power conversion efficiency of up to 17.6%. The hexanary device performance is unaffected by thermal annealing of the bulk-heterojunction active layer for at least 23 days at 130 °C in the dark and an inert atmosphere. Moreover, hexanary blends offer a high degree of thermal stability for an active layer thickness of up to 390 nm, which is advantageous for high-throughput processing of organic solar cells. Here, a generic strategy based on multi-component acceptor mixtures is presented that permits to considerably improve the thermal stability of non-fullerene based devices and thus paves the way for large-area organic solar cells. Non-fullerene-based organic solar cells generally suffer from poor thermal stability and especially in case of devices with thick active layers. Here, the authors report hexanary blends based on multi-component acceptor mixtures with a device efficiency of 17.6% and thermally stability for 23 days at 130 °C.
doi_str_mv 10.1038/s41467-023-39830-6
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I.</au><au>Moons, Ellen</au><au>Li, Ruipeng</au><au>Yu, Liyang</au><au>Gorenflot, Julien</au><au>Laquai, Frédéric</au><au>Müller, Christian</au><au>Baran, Derya</au><aucorp>Brookhaven National Laboratory (BNL), Upton, NY (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hexanary blends: a strategy towards thermally stable organic photovoltaics</atitle><jtitle>Nature communications</jtitle><stitle>Nat Commun</stitle><addtitle>Nat Commun</addtitle><date>2023-08-01</date><risdate>2023</risdate><volume>14</volume><issue>1</issue><spage>4608</spage><epage>9</epage><pages>4608-9</pages><artnum>4608</artnum><issn>2041-1723</issn><eissn>2041-1723</eissn><abstract>Non-fullerene based organic solar cells display a high initial power conversion efficiency but continue to suffer from poor thermal stability, especially in case of devices with thick active layers. Mixing of five structurally similar acceptors with similar electron affinities, and blending with a donor polymer is explored, yielding devices with a power conversion efficiency of up to 17.6%. The hexanary device performance is unaffected by thermal annealing of the bulk-heterojunction active layer for at least 23 days at 130 °C in the dark and an inert atmosphere. Moreover, hexanary blends offer a high degree of thermal stability for an active layer thickness of up to 390 nm, which is advantageous for high-throughput processing of organic solar cells. Here, a generic strategy based on multi-component acceptor mixtures is presented that permits to considerably improve the thermal stability of non-fullerene based devices and thus paves the way for large-area organic solar cells. Non-fullerene-based organic solar cells generally suffer from poor thermal stability and especially in case of devices with thick active layers. Here, the authors report hexanary blends based on multi-component acceptor mixtures with a device efficiency of 17.6% and thermally stability for 23 days at 130 °C.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>37528112</pmid><doi>10.1038/s41467-023-39830-6</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-5887-6158</orcidid><orcidid>https://orcid.org/0000-0003-2995-3692</orcidid><orcidid>https://orcid.org/0000-0003-2196-8187</orcidid><orcidid>https://orcid.org/0000-0003-0602-1905</orcidid><orcidid>https://orcid.org/0000-0002-0533-3205</orcidid><orcidid>https://orcid.org/0000-0002-1609-8909</orcidid><orcidid>https://orcid.org/0000-0001-7165-5256</orcidid><orcidid>https://orcid.org/0000-0001-5458-6121</orcidid><orcidid>https://orcid.org/0000-0003-4841-0108</orcidid><orcidid>https://orcid.org/0000-0001-7859-7909</orcidid><orcidid>https://orcid.org/0000000205333205</orcidid><orcidid>https://orcid.org/0000000321968187</orcidid><orcidid>https://orcid.org/0000000216098909</orcidid><orcidid>https://orcid.org/0000000258876158</orcidid><orcidid>https://orcid.org/0000000329953692</orcidid><orcidid>https://orcid.org/0000000178597909</orcidid><orcidid>https://orcid.org/0000000306021905</orcidid><orcidid>https://orcid.org/0000000348410108</orcidid><orcidid>https://orcid.org/0000000154586121</orcidid><orcidid>https://orcid.org/0000000171655256</orcidid><oa>free_for_read</oa></addata></record>
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identifier ISSN: 2041-1723
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2041-1723
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subjects 147/3
639/301/1005/1007
639/301/299/946
Chemistry - Physical Chemistry
Devices
Efficiency
electronic devices
Energy conversion efficiency
Fullerenes
Heterojunctions
Humanities and Social Sciences
Inert atmospheres
Kemi - fysikalisk kemi
MATERIALS SCIENCE
Mixtures
multidisciplinary
Photovoltaic cells
Photovoltaics
Polymers
Science
Science (multidisciplinary)
Solar cells
Thermal stability
Thickness
title Hexanary blends: a strategy towards thermally stable organic photovoltaics
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