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On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance

Stefan Zeiske, CHRISTINA KAISER, Oskar Sandberg Orcid Logo, Tove Ericson, Paul Meredith Orcid Logo, Charlotte Platzer‐Björkman Orcid Logo, Ardalan Armin Orcid Logo

Advanced Photonics Research, Volume: 4, Issue: 9

Swansea University Authors: Stefan Zeiske, CHRISTINA KAISER, Oskar Sandberg Orcid Logo, Paul Meredith Orcid Logo, Ardalan Armin Orcid Logo

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DOI (Published version): 10.1002/adpr.202300177

Abstract

Kesterites are currently viewed as one of the most promising candidates for earth abundant and benign elements to substitute critical raw materials in photovoltaic technologies and may also be suitable for low-noise, room-temperature, self-powered photodetectors. However, while the impact of buffer...

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Published in: Advanced Photonics Research
ISSN: 2699-9293 2699-9293
Published: Wiley 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa63852
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However, while the impact of buffer layers on kesterite solar cell efficiency has been an active area of investigation, links between photodetector performance and intermediate layers are yet to be addressed. Herein, the impact of cadmium sulfide buffer layers on the performance of kesterite (Cu2ZnSnS4) photodetectors is probed. Specifically, the effect of buffer layer thickness on various photodetector performance metrices is clarified, including noise current, spectral responsivity, noise equivalent power, frequency response, and specific detectivity. Devices with a 100 nm cadmium sulfide layer perform the best, achieving a linear dynamic range of 180 dB and frequency responses in the range of tens of kHz. The key loss mechanisms are identified, and it is found that the photodetector performance to be primarily limited by shunt resistance-induced thermal noise and defect-induced nonradiative losses. 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spelling v2 63852 2023-07-10 On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance 0c9c5b89df9ac882c3e09dd1a9f28fc5 Stefan Zeiske Stefan Zeiske true false dd1e83902e695cade3f07fbb6180c7f8 CHRISTINA KAISER CHRISTINA KAISER true false 9e91512a54d5aee66cd77851a96ba747 0000-0003-3778-8746 Oskar Sandberg Oskar Sandberg true false 31e8fe57fa180d418afd48c3af280c2e 0000-0002-9049-7414 Paul Meredith Paul Meredith true false 22b270622d739d81e131bec7a819e2fd 0000-0002-6129-5354 Ardalan Armin Ardalan Armin true false 2023-07-10 SPH Kesterites are currently viewed as one of the most promising candidates for earth abundant and benign elements to substitute critical raw materials in photovoltaic technologies and may also be suitable for low-noise, room-temperature, self-powered photodetectors. However, while the impact of buffer layers on kesterite solar cell efficiency has been an active area of investigation, links between photodetector performance and intermediate layers are yet to be addressed. Herein, the impact of cadmium sulfide buffer layers on the performance of kesterite (Cu2ZnSnS4) photodetectors is probed. Specifically, the effect of buffer layer thickness on various photodetector performance metrices is clarified, including noise current, spectral responsivity, noise equivalent power, frequency response, and specific detectivity. Devices with a 100 nm cadmium sulfide layer perform the best, achieving a linear dynamic range of 180 dB and frequency responses in the range of tens of kHz. The key loss mechanisms are identified, and it is found that the photodetector performance to be primarily limited by shunt resistance-induced thermal noise and defect-induced nonradiative losses. Furthermore, we estimate the upper radiative limit of specific detectivity to be approximately 10(19) Jones. Our results highlight the potential of kesterites to be used as an interesting earth abundant candidate for photodetection applications. Journal Article Advanced Photonics Research 4 9 Wiley 2699-9293 2699-9293 Buffer layer, kesterites, photodetector, specific detectivity 7 9 2023 2023-09-07 10.1002/adpr.202300177 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University SU Library paid the OA fee (TA Institutional Deal) Swansea University. Engineering and Physical Sciences Research Council (EP/T028513/1). Vetenskapsrådet (2019-04793). Energimyndigheten. 2024-05-07T13:01:35.3531963 2023-07-10T14:46:40.4826151 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Stefan Zeiske 1 CHRISTINA KAISER 2 Oskar Sandberg 0000-0003-3778-8746 3 Tove Ericson 4 Paul Meredith 0000-0002-9049-7414 5 Charlotte Platzer‐Björkman 0000-0002-6554-9673 6 Ardalan Armin 0000-0002-6129-5354 7 63852__28222__8b7d6efba52d4a1a9172ac36f1457f43.pdf 63852.VOR.pdf 2023-07-31T16:56:40.1223146 Output 1942480 application/pdf Version of Record true © 2023 The Authors. Advanced Photonics Research published by WileyVCH GmbH. Distributed under the terms of a Creative Commons Attribution 4.0 License (CC BY 4.0). true eng https://creativecommons.org/licenses/by/4.0/
title On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
spellingShingle On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
Stefan Zeiske
CHRISTINA KAISER
Oskar Sandberg
Paul Meredith
Ardalan Armin
title_short On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
title_full On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
title_fullStr On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
title_full_unstemmed On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
title_sort On the Impact of Cadmium Sulfide Layer Thickness on Kesterite Photodetector Performance
author_id_str_mv 0c9c5b89df9ac882c3e09dd1a9f28fc5
dd1e83902e695cade3f07fbb6180c7f8
9e91512a54d5aee66cd77851a96ba747
31e8fe57fa180d418afd48c3af280c2e
22b270622d739d81e131bec7a819e2fd
author_id_fullname_str_mv 0c9c5b89df9ac882c3e09dd1a9f28fc5_***_Stefan Zeiske
dd1e83902e695cade3f07fbb6180c7f8_***_CHRISTINA KAISER
9e91512a54d5aee66cd77851a96ba747_***_Oskar Sandberg
31e8fe57fa180d418afd48c3af280c2e_***_Paul Meredith
22b270622d739d81e131bec7a819e2fd_***_Ardalan Armin
author Stefan Zeiske
CHRISTINA KAISER
Oskar Sandberg
Paul Meredith
Ardalan Armin
author2 Stefan Zeiske
CHRISTINA KAISER
Oskar Sandberg
Tove Ericson
Paul Meredith
Charlotte Platzer‐Björkman
Ardalan Armin
format Journal article
container_title Advanced Photonics Research
container_volume 4
container_issue 9
publishDate 2023
institution Swansea University
issn 2699-9293
2699-9293
doi_str_mv 10.1002/adpr.202300177
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 Kesterites are currently viewed as one of the most promising candidates for earth abundant and benign elements to substitute critical raw materials in photovoltaic technologies and may also be suitable for low-noise, room-temperature, self-powered photodetectors. However, while the impact of buffer layers on kesterite solar cell efficiency has been an active area of investigation, links between photodetector performance and intermediate layers are yet to be addressed. Herein, the impact of cadmium sulfide buffer layers on the performance of kesterite (Cu2ZnSnS4) photodetectors is probed. Specifically, the effect of buffer layer thickness on various photodetector performance metrices is clarified, including noise current, spectral responsivity, noise equivalent power, frequency response, and specific detectivity. Devices with a 100 nm cadmium sulfide layer perform the best, achieving a linear dynamic range of 180 dB and frequency responses in the range of tens of kHz. The key loss mechanisms are identified, and it is found that the photodetector performance to be primarily limited by shunt resistance-induced thermal noise and defect-induced nonradiative losses. Furthermore, we estimate the upper radiative limit of specific detectivity to be approximately 10(19) Jones. Our results highlight the potential of kesterites to be used as an interesting earth abundant candidate for photodetection applications.
published_date 2023-09-07T13:01:34Z
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