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Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells

Staffan Dahlström, Xiaoyu Liu, Yajie Yan, Oskar Sandberg Orcid Logo, Mathias Nyman, Ziqi Liang, Ronald Österbacka

ACS Applied Energy Materials, Volume: 3, Issue: 9, Pages: 9190 - 9197

Swansea University Author: Oskar Sandberg Orcid Logo

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DOI (Published version): 10.1021/acsaem.0c01539

Abstract

The field of organic solar cells has recently gained broad research interest due to the introduction of non-fullerene small-molecule acceptors. The rapid improvement in solar cell efficiency put increased demand on moving toward scalable device architectures. An essential step toward this is enablin...

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Published in: ACS Applied Energy Materials
ISSN: 2574-0962 2574-0962
Published: American Chemical Society (ACS) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa57802
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spelling 2021-10-08T12:59:14.0715028 v2 57802 2021-09-07 Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells 9e91512a54d5aee66cd77851a96ba747 0000-0003-3778-8746 Oskar Sandberg Oskar Sandberg true false 2021-09-07 SPH The field of organic solar cells has recently gained broad research interest due to the introduction of non-fullerene small-molecule acceptors. The rapid improvement in solar cell efficiency put increased demand on moving toward scalable device architectures. An essential step toward this is enabling thicker active layers for which the hole and electron mobilities and their ratio become increasingly important. In this work, we demonstrate selective charge-carrier mobility determination using the charge extraction by a linearly increasing voltage (CELIV) method. By tuning the contact properties of the solar cell diodes, the hole and electron mobilities are determined separately using the recently developed metal–intrinsic semiconductor–metal-CELIV (MIM-CELIV) technique. Balanced mobility is measured both in non-fullerene and in ternary blends with the recently published PBBF11 polymer. The mobility results are confirmed using the well-established metal–insulator–semiconductor (MIS) and photo-CELIV techniques. Journal Article ACS Applied Energy Materials 3 9 9190 9197 American Chemical Society (ACS) 2574-0962 2574-0962 Electrical and Electronic Engineering, Materials Chemistry, Electrochemistry, Energy Engineering and Power Technology, Chemical Engineering (miscellaneous) 28 9 2020 2020-09-28 10.1021/acsaem.0c01539 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University Academy of Finland Grant: 326000 Identifier: FundRef 10.13039/501100002341 Jane ja Aatos Erkon S??ti? Identifier: FundRef 10.13039/501100004012 Suomalainen Tiedeakatemia Identifier: FundRef 10.13039/501100002342 Science and Technology Commission of Shanghai Municipality Grant: 17520710100 Identifier: FundRef 10.13039/501100003399 Svenska Litteraturs?llskapet i Finland Identifier: FundRef 10.13039/501100009436 2021-10-08T12:59:14.0715028 2021-09-07T15:55:04.5656751 College of Science Physics Staffan Dahlström 1 Xiaoyu Liu 2 Yajie Yan 3 Oskar Sandberg 0000-0003-3778-8746 4 Mathias Nyman 5 Ziqi Liang 6 Ronald Österbacka 7 57802__20773__e519e4821ac14cf48ae0db3566b60031.pdf 57802.VOR.acsaem.0c01539.pdf 2021-09-07T16:08:47.3746865 Output 2413582 application/pdf Version of Record true This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. true eng http://creativecommons.org/licenses/by/4.0/
title Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
spellingShingle Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
Oskar Sandberg
title_short Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
title_full Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
title_fullStr Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
title_full_unstemmed Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
title_sort Extraction Current Transients for Selective Charge-Carrier Mobility Determination in Non-Fullerene and Ternary Bulk Heterojunction Organic Solar Cells
author_id_str_mv 9e91512a54d5aee66cd77851a96ba747
author_id_fullname_str_mv 9e91512a54d5aee66cd77851a96ba747_***_Oskar Sandberg
author Oskar Sandberg
author2 Staffan Dahlström
Xiaoyu Liu
Yajie Yan
Oskar Sandberg
Mathias Nyman
Ziqi Liang
Ronald Österbacka
format Journal article
container_title ACS Applied Energy Materials
container_volume 3
container_issue 9
container_start_page 9190
publishDate 2020
institution Swansea University
issn 2574-0962
2574-0962
doi_str_mv 10.1021/acsaem.0c01539
publisher American Chemical Society (ACS)
college_str College of Science
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hierarchy_parent_title College of Science
department_str Physics{{{_:::_}}}College of Science{{{_:::_}}}Physics
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description The field of organic solar cells has recently gained broad research interest due to the introduction of non-fullerene small-molecule acceptors. The rapid improvement in solar cell efficiency put increased demand on moving toward scalable device architectures. An essential step toward this is enabling thicker active layers for which the hole and electron mobilities and their ratio become increasingly important. In this work, we demonstrate selective charge-carrier mobility determination using the charge extraction by a linearly increasing voltage (CELIV) method. By tuning the contact properties of the solar cell diodes, the hole and electron mobilities are determined separately using the recently developed metal–intrinsic semiconductor–metal-CELIV (MIM-CELIV) technique. Balanced mobility is measured both in non-fullerene and in ternary blends with the recently published PBBF11 polymer. The mobility results are confirmed using the well-established metal–insulator–semiconductor (MIS) and photo-CELIV techniques.
published_date 2020-09-28T04:32:48Z
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