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Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells

Donghui Li Orcid Logo, Austin Marshall Kay, Drew Riley Orcid Logo, Oskar J. Sandberg, Ardalan Armin, Paul Meredith Orcid Logo, Ardalan Armin

Advanced Energy Materials, Volume: 15, Issue: 24, Start page: 2500816

Swansea University Authors: Donghui Li Orcid Logo, Austin Marshall Kay, Drew Riley Orcid Logo, Paul Meredith Orcid Logo, Ardalan Armin

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DOI (Published version): 10.1002/aenm.202500816

Abstract

Recent progress in organic (semiconductor) solar cells (OSCs) has led to power conversion efficiencies (PCEs) reaching 20%, with predictions that 25% may be possible. Additional to PCE improvements, significant efforts have been made to address the engineering challenges that have traditionally limi...

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Published in: Advanced Energy Materials
ISSN: 1614-6832 1614-6840
Published: Wiley 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa69237
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spelling 2025-07-18T15:14:18.9528149 v2 69237 2025-04-08 Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells 4ae03ccf9bb9ddfe64bfd96c156a67bd 0009-0008-1970-9577 Donghui Li Donghui Li true false 0d9126cbd038113f697c252762b4f053 Austin Marshall Kay Austin Marshall Kay true false edca1c48f922393fa2b3cb84d8dc0e4a 0000-0001-6688-0694 Drew Riley Drew Riley true false 31e8fe57fa180d418afd48c3af280c2e 0000-0002-9049-7414 Paul Meredith Paul Meredith true false 22b270622d739d81e131bec7a819e2fd Ardalan Armin Ardalan Armin true false 2025-04-08 BGPS Recent progress in organic (semiconductor) solar cells (OSCs) has led to power conversion efficiencies (PCEs) reaching 20%, with predictions that 25% may be possible. Additional to PCE improvements, significant efforts have been made to address the engineering challenges that have traditionally limited OSCs small area devices often with poor temporal stability. Layer-by-layer (LbL) processing of active layers has emerged as a promising approach to tackle these challenges, with numerous state-of-the-art OSCs processed using LbL reported. In this Perspective, recent developments are developed in enhancing OSC efficiency and stability, with a particular focus on the working mechanisms of pseudo-bilayer heterojunctions (P-BHJ) and the practical aspects of fabricating high-performance devices using LbL techniques. By providing insights into LbL processing and the resultant film morphology, it is hoped to contribute to the ongoing efforts to improve OSC efficiency, stability, and scalability and to explore their potential for broader applications such as for example for indoor light harvesting or agrivoltaics. Journal Article Advanced Energy Materials 15 24 2500816 Wiley 1614-6832 1614-6840 layer-by-layer, organic solar cells, power conversion efficiency, pseudo-bilayer heterojunctions, stability 24 6 2025 2025-06-24 10.1002/aenm.202500816 Perspective COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University SU Library paid the OA fee (TA Institutional Deal) This work was supported by the Welsh Government's Sêr Cymru II Program through the European Regional Development Fund, Welsh European Funding Office, and the Swansea University strategic initiative in Sustainable Advanced Materials. A.A. was a Sêr Cymru II Rising Star Fellow, and P.M. is a Sêr Cymru II National Research Chair. O.J.S. is an Academy Research Fellow and acknowledges funding from the Research Council of Finland through project #357196. This work was also funded by UKRI through the EPSRC Program Grant EP/T028513/1 Application Targeted Integrated Photovoltaics and Centre for Integrative Semiconductor Materials (UKRI Research Partnership Investment Fund). 2025-07-18T15:14:18.9528149 2025-04-08T09:17:22.0520484 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Donghui Li 0009-0008-1970-9577 1 Austin Marshall Kay 2 Drew Riley 0000-0001-6688-0694 3 Oskar J. Sandberg 4 Ardalan Armin 5 Paul Meredith 0000-0002-9049-7414 6 Ardalan Armin 7 69237__34132__0f6a5bf39fd94d8993a664e830ba0088.pdf 69237.VOR.pdf 2025-04-29T11:26:02.9897117 Output 5809238 application/pdf Version of Record true © 2025 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License (CC BY). true eng http://creativecommons.org/licenses/by/4.0/
title Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
spellingShingle Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
Donghui Li
Austin Marshall Kay
Drew Riley
Paul Meredith
Ardalan Armin
title_short Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
title_full Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
title_fullStr Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
title_full_unstemmed Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
title_sort Layer‐by‐Layer Processed Pseudo‐Bilayer Heterojunctions Advance the Performance of Organic Solar Cells
author_id_str_mv 4ae03ccf9bb9ddfe64bfd96c156a67bd
0d9126cbd038113f697c252762b4f053
edca1c48f922393fa2b3cb84d8dc0e4a
31e8fe57fa180d418afd48c3af280c2e
22b270622d739d81e131bec7a819e2fd
author_id_fullname_str_mv 4ae03ccf9bb9ddfe64bfd96c156a67bd_***_Donghui Li
0d9126cbd038113f697c252762b4f053_***_Austin Marshall Kay
edca1c48f922393fa2b3cb84d8dc0e4a_***_Drew Riley
31e8fe57fa180d418afd48c3af280c2e_***_Paul Meredith
22b270622d739d81e131bec7a819e2fd_***_Ardalan Armin
author Donghui Li
Austin Marshall Kay
Drew Riley
Paul Meredith
Ardalan Armin
author2 Donghui Li
Austin Marshall Kay
Drew Riley
Oskar J. Sandberg
Ardalan Armin
Paul Meredith
Ardalan Armin
format Journal article
container_title Advanced Energy Materials
container_volume 15
container_issue 24
container_start_page 2500816
publishDate 2025
institution Swansea University
issn 1614-6832
1614-6840
doi_str_mv 10.1002/aenm.202500816
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
document_store_str 1
active_str 0
description Recent progress in organic (semiconductor) solar cells (OSCs) has led to power conversion efficiencies (PCEs) reaching 20%, with predictions that 25% may be possible. Additional to PCE improvements, significant efforts have been made to address the engineering challenges that have traditionally limited OSCs small area devices often with poor temporal stability. Layer-by-layer (LbL) processing of active layers has emerged as a promising approach to tackle these challenges, with numerous state-of-the-art OSCs processed using LbL reported. In this Perspective, recent developments are developed in enhancing OSC efficiency and stability, with a particular focus on the working mechanisms of pseudo-bilayer heterojunctions (P-BHJ) and the practical aspects of fabricating high-performance devices using LbL techniques. By providing insights into LbL processing and the resultant film morphology, it is hoped to contribute to the ongoing efforts to improve OSC efficiency, stability, and scalability and to explore their potential for broader applications such as for example for indoor light harvesting or agrivoltaics.
published_date 2025-06-24T05:26:24Z
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