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Light intensity dependence of the photocurrent in organic photovoltaic devices

STEFAN ZEISKE, Wei Li, Paul Meredith Orcid Logo, Ardalan Armin Orcid Logo, Oskar Sandberg Orcid Logo

Cell Reports Physical Science, Volume: 3, Issue: 10, Start page: 101096

Swansea University Authors: STEFAN ZEISKE, Wei Li, Paul Meredith Orcid Logo, Ardalan Armin Orcid Logo, Oskar Sandberg Orcid Logo

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DOI (Published version): 10.1016/j.xcrp.2022.101096

Abstract

The competition between recombination and extraction of carriers defines the charge collection efficiency and, therefore, the overall performance of organic photovoltaic devices, including solar cells and photodetectors. In this work, we describe different components of the steady-state light intens...

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Published in: Cell Reports Physical Science
ISSN: 2666-3864
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61555
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In this work, we describe different components of the steady-state light intensity-dependent photocurrent (IPC) and charge collection efficiency under operational conditions. Further, we demonstrate how different loss mechanisms can be identified based on their unique signatures in the IPC. In particular, we show how IPC can be used to distinguish first-order, trap-assisted recombination from other first-order photocurrent loss mechanisms, which dominate at the low-intensity characteristic of indoor light-harvesting applications. The theoretical framework is presented and verified by a one-dimensional drift-diffusion device model. Finally, the extended IPC methodology is validated on organic thin-film photovoltaic devices. 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spelling 2022-10-20T10:58:29.9303503 v2 61555 2022-10-14 Light intensity dependence of the photocurrent in organic photovoltaic devices 97df283d21b8fdfcad174628827e4c0b STEFAN ZEISKE STEFAN ZEISKE true false d6c46502d8e5f62c1af3c7fce334ac90 Wei Li Wei Li true false 31e8fe57fa180d418afd48c3af280c2e 0000-0002-9049-7414 Paul Meredith Paul Meredith true false 22b270622d739d81e131bec7a819e2fd 0000-0002-6129-5354 Ardalan Armin Ardalan Armin true false 9e91512a54d5aee66cd77851a96ba747 0000-0003-3778-8746 Oskar Sandberg Oskar Sandberg true false 2022-10-14 The competition between recombination and extraction of carriers defines the charge collection efficiency and, therefore, the overall performance of organic photovoltaic devices, including solar cells and photodetectors. In this work, we describe different components of the steady-state light intensity-dependent photocurrent (IPC) and charge collection efficiency under operational conditions. Further, we demonstrate how different loss mechanisms can be identified based on their unique signatures in the IPC. In particular, we show how IPC can be used to distinguish first-order, trap-assisted recombination from other first-order photocurrent loss mechanisms, which dominate at the low-intensity characteristic of indoor light-harvesting applications. The theoretical framework is presented and verified by a one-dimensional drift-diffusion device model. Finally, the extended IPC methodology is validated on organic thin-film photovoltaic devices. We conclude that the relatively straightforward measurement of IPC over a large dynamic range can be a powerful tool for understanding solar and indoor device fundamentals. Journal Article Cell Reports Physical Science 3 10 101096 Elsevier BV 2666-3864 organic semiconductors; thin-film devices; charge collection; photocurrent; charge recombination; space charge; series resistance; trap states; intensity dependence 19 10 2022 2022-10-19 10.1016/j.xcrp.2022.101096 COLLEGE NANME COLLEGE CODE Swansea University This work was supported by the Welsh Government’s Sêr Cymru II Program through the European Regional Development Fund, Welsh European Funding Office, and Swansea University strategic initiative in Sustainable Advanced Materials. A.A. is a Sêr Cymru II Rising Star Fellow, and P.M. is a Sêr Cymru II National Research Chair. This work was also funded by UKRI through EPSRC program grant EP/T028511/1, Application Targeted Integrated Photovoltaics. 2022-10-20T10:58:29.9303503 2022-10-14T10:24:09.2392501 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics STEFAN ZEISKE 1 Wei Li 2 Paul Meredith 0000-0002-9049-7414 3 Ardalan Armin 0000-0002-6129-5354 4 Oskar Sandberg 0000-0003-3778-8746 5 61555__25512__dddb84ff72f847669710bbf96e6205a8.pdf 61555_VoR.pdf 2022-10-20T10:56:39.0306129 Output 2210087 application/pdf Version of Record true Copyright: 2022 The Author(s).This is an open access article under the CC BY license true eng http://creativecommons.org/licenses/by/4.0/
title Light intensity dependence of the photocurrent in organic photovoltaic devices
spellingShingle Light intensity dependence of the photocurrent in organic photovoltaic devices
STEFAN ZEISKE
Wei Li
Paul Meredith
Ardalan Armin
Oskar Sandberg
title_short Light intensity dependence of the photocurrent in organic photovoltaic devices
title_full Light intensity dependence of the photocurrent in organic photovoltaic devices
title_fullStr Light intensity dependence of the photocurrent in organic photovoltaic devices
title_full_unstemmed Light intensity dependence of the photocurrent in organic photovoltaic devices
title_sort Light intensity dependence of the photocurrent in organic photovoltaic devices
author_id_str_mv 97df283d21b8fdfcad174628827e4c0b
d6c46502d8e5f62c1af3c7fce334ac90
31e8fe57fa180d418afd48c3af280c2e
22b270622d739d81e131bec7a819e2fd
9e91512a54d5aee66cd77851a96ba747
author_id_fullname_str_mv 97df283d21b8fdfcad174628827e4c0b_***_STEFAN ZEISKE
d6c46502d8e5f62c1af3c7fce334ac90_***_Wei Li
31e8fe57fa180d418afd48c3af280c2e_***_Paul Meredith
22b270622d739d81e131bec7a819e2fd_***_Ardalan Armin
9e91512a54d5aee66cd77851a96ba747_***_Oskar Sandberg
author STEFAN ZEISKE
Wei Li
Paul Meredith
Ardalan Armin
Oskar Sandberg
author2 STEFAN ZEISKE
Wei Li
Paul Meredith
Ardalan Armin
Oskar Sandberg
format Journal article
container_title Cell Reports Physical Science
container_volume 3
container_issue 10
container_start_page 101096
publishDate 2022
institution Swansea University
issn 2666-3864
doi_str_mv 10.1016/j.xcrp.2022.101096
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 Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
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description The competition between recombination and extraction of carriers defines the charge collection efficiency and, therefore, the overall performance of organic photovoltaic devices, including solar cells and photodetectors. In this work, we describe different components of the steady-state light intensity-dependent photocurrent (IPC) and charge collection efficiency under operational conditions. Further, we demonstrate how different loss mechanisms can be identified based on their unique signatures in the IPC. In particular, we show how IPC can be used to distinguish first-order, trap-assisted recombination from other first-order photocurrent loss mechanisms, which dominate at the low-intensity characteristic of indoor light-harvesting applications. The theoretical framework is presented and verified by a one-dimensional drift-diffusion device model. Finally, the extended IPC methodology is validated on organic thin-film photovoltaic devices. We conclude that the relatively straightforward measurement of IPC over a large dynamic range can be a powerful tool for understanding solar and indoor device fundamentals.
published_date 2022-10-19T04:17:25Z
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score 10.9382515

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