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Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells

Bowen Sun Orcid Logo, Nurlan Tokmoldin, Obaid Alqahtani Orcid Logo, Acacia Patterson, Catherine De Castro Orcid Logo, Drew Riley, Manasi Pranav Orcid Logo, Ardalan Armin Orcid Logo, Frédéric Laquai Orcid Logo, Brian A. Collins Orcid Logo, Dieter Neher, Safa Shoaee Orcid Logo

Advanced Energy Materials, Volume: 13, Issue: 26

Swansea University Authors: Catherine De Castro Orcid Logo, Drew Riley, Ardalan Armin Orcid Logo

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DOI (Published version): 10.1002/aenm.202300980

Abstract

Low-offset organic solar cell systems have attracted great interest since nonfullerene acceptors came into the picture. While numerous studies have focused on the charge generation process in these low-offset systems, only a few studies have focused on the details of each loss channel in the charge...

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Published in: Advanced Energy Materials
ISSN: 1614-6832 1614-6840
Published: Wiley 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa63937
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Through detailed analyses of loss pathways, it is found that: i) the donor:acceptor interfaces of PM6:Y6 and PM6:TPT10 are close to the optimum energetic condition, ii) energetics at the donor:acceptor interface are the most important factor to the overall device performance, iii) exciton dissociation yield can be field-dependent owing to the sufficiently small energetic offset at the donor:acceptor interface, and iv) the change in substituents in the terminal group of Y-series acceptors in this work mainly affects energetics at the donor:acceptor interface instead of the interface density in the active layer. 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spelling v2 63937 2023-07-25 Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells 9523c09d78056932bb9b6959b559323e 0000-0003-0649-3427 Catherine De Castro Catherine De Castro true false edca1c48f922393fa2b3cb84d8dc0e4a Drew Riley Drew Riley true false 22b270622d739d81e131bec7a819e2fd 0000-0002-6129-5354 Ardalan Armin Ardalan Armin true false 2023-07-25 EEN Low-offset organic solar cell systems have attracted great interest since nonfullerene acceptors came into the picture. While numerous studies have focused on the charge generation process in these low-offset systems, only a few studies have focused on the details of each loss channel in the charge generation process and their impact on the overall device performance. Here, several nonfullerene acceptors are blended with the same polymer donor to form a series of low-offset organic solar cell systems where significant variation in device performance is observed. Through detailed analyses of loss pathways, it is found that: i) the donor:acceptor interfaces of PM6:Y6 and PM6:TPT10 are close to the optimum energetic condition, ii) energetics at the donor:acceptor interface are the most important factor to the overall device performance, iii) exciton dissociation yield can be field-dependent owing to the sufficiently small energetic offset at the donor:acceptor interface, and iv) the change in substituents in the terminal group of Y-series acceptors in this work mainly affects energetics at the donor:acceptor interface instead of the interface density in the active layer. In general, this work presents a path toward more efficient organic solar cells. Journal Article Advanced Energy Materials 13 26 Wiley 1614-6832 1614-6840 1 7 2023 2023-07-01 10.1002/aenm.202300980 http://dx.doi.org/10.1002/aenm.202300980 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University Another institution paid the OA fee Deutsche Forschungsgemeinschaft. Grant Number: 450968074 Extraordinaire. Grant Number: 460766640 U.S. Department of Energy Early Career Research Program. Grant Number: DE-SC0017923 DOE Office of Science User facility. Grant Numbers: DE-AC02-05CH11231, Beamline 7-ID-1 Brookhaven National Laboratory. Grant Number: DESC0012704 KAUST Office of Sponsored Research. Grant Number: ORFS-CRG7-2019-4025 European Regional Development Fund Natural Sciences and Engineering Research Council of Canada. Grant Number: PGSD3-545694-2020 Open access funding enabled and organized by Projekt DEAL. 2023-08-21T12:15:54.9469326 2023-07-25T00:31:54.9447979 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Bowen Sun 0000-0003-1993-9731 1 Nurlan Tokmoldin 2 Obaid Alqahtani 0000-0002-3844-784x 3 Acacia Patterson 4 Catherine De Castro 0000-0003-0649-3427 5 Drew Riley 6 Manasi Pranav 0000-0002-0733-4121 7 Ardalan Armin 0000-0002-6129-5354 8 Frédéric Laquai 0000-0002-5887-6158 9 Brian A. Collins 0000-0003-2047-8418 10 Dieter Neher 11 Safa Shoaee 0000-0001-5754-834x 12 63937__28172__594515c3525642a59c4f86f8a2518386.pdf 63937.pdf 2023-07-25T14:29:18.4056003 Output 2102793 application/pdf Version of Record true Distributed under the terms of a Creative Commons Attribution 4.0 CC-BY Licence. true eng http://creativecommons.org/licenses/by/4.0/
title Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
spellingShingle Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
Catherine De Castro
Drew Riley
Ardalan Armin
title_short Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
title_full Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
title_fullStr Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
title_full_unstemmed Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
title_sort Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells
author_id_str_mv 9523c09d78056932bb9b6959b559323e
edca1c48f922393fa2b3cb84d8dc0e4a
22b270622d739d81e131bec7a819e2fd
author_id_fullname_str_mv 9523c09d78056932bb9b6959b559323e_***_Catherine De Castro
edca1c48f922393fa2b3cb84d8dc0e4a_***_Drew Riley
22b270622d739d81e131bec7a819e2fd_***_Ardalan Armin
author Catherine De Castro
Drew Riley
Ardalan Armin
author2 Bowen Sun
Nurlan Tokmoldin
Obaid Alqahtani
Acacia Patterson
Catherine De Castro
Drew Riley
Manasi Pranav
Ardalan Armin
Frédéric Laquai
Brian A. Collins
Dieter Neher
Safa Shoaee
format Journal article
container_title Advanced Energy Materials
container_volume 13
container_issue 26
publishDate 2023
institution Swansea University
issn 1614-6832
1614-6840
doi_str_mv 10.1002/aenm.202300980
publisher Wiley
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 Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
url http://dx.doi.org/10.1002/aenm.202300980
document_store_str 1
active_str 0
description Low-offset organic solar cell systems have attracted great interest since nonfullerene acceptors came into the picture. While numerous studies have focused on the charge generation process in these low-offset systems, only a few studies have focused on the details of each loss channel in the charge generation process and their impact on the overall device performance. Here, several nonfullerene acceptors are blended with the same polymer donor to form a series of low-offset organic solar cell systems where significant variation in device performance is observed. Through detailed analyses of loss pathways, it is found that: i) the donor:acceptor interfaces of PM6:Y6 and PM6:TPT10 are close to the optimum energetic condition, ii) energetics at the donor:acceptor interface are the most important factor to the overall device performance, iii) exciton dissociation yield can be field-dependent owing to the sufficiently small energetic offset at the donor:acceptor interface, and iv) the change in substituents in the terminal group of Y-series acceptors in this work mainly affects energetics at the donor:acceptor interface instead of the interface density in the active layer. In general, this work presents a path toward more efficient organic solar cells.
published_date 2023-07-01T12:15:55Z
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score 11.016235

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