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Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization

Stefan Zeiske, Paul Meredith Orcid Logo, Ardalan Armin, Gregory Burwell Orcid Logo

APL Energy, Volume: 1, Issue: 2

Swansea University Authors: Stefan Zeiske, Paul Meredith Orcid Logo, Ardalan Armin, Gregory Burwell Orcid Logo

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DOI (Published version): 10.1063/5.0159289

Abstract

Indoor photovoltaic (IPV) devices are poised to make a significant contribution to the proliferation of the “Internet of Things” (IoT). For the accurate intercomparison of IPVs (and, hence, to advance the rational development of the technology), lighting conditions representative of those in typical...

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Published in: APL Energy
ISSN: 2770-9000
Published: AIP Publishing 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa67901
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For the accurate intercomparison of IPVs (and, hence, to advance the rational development of the technology), lighting conditions representative of those in typical indoor settings must be created reproducibly. As indoor lighting is invariably broadband, this will typically require the use of optical attenuation to achieve varying irradiance conditions at the device under test location. However, most forms of optical attenuation will suffer from some degree of spectral dispersion, creating sources of uncertainty for key figures of merit, such as power conversion efficiency. In this work, we examine the contribution of the mode of optical attenuation to the accurate characterization of IPV systems. We discuss requirements for broadband light source attenuation for the accurate characterization of photovoltaic devices under indoor illumination and consider the importance of using suitable reference devices for light intensity calibration. Furthermore, we experimentally verify attenuation methods typically used, including power control of the light source itself, use of neutral density filters, and advanced attenuation based on tandem prism attenuators. Finally, spectral shape alteration-induced uncertainties in performance parameter determination of photovoltaic cells under indoor illumination are quantified for three common broadband light attenuation methods, where we found ∼2%, ∼6%, and up to ∼15% ambiguity in photovoltaic device efficiency when using LED power control, prism attenuators, and neutral density filter-based broadband light attenuation, respectively.</abstract><type>Journal Article</type><journal>APL Energy</journal><volume>1</volume><journalNumber>2</journalNumber><paginationStart/><paginationEnd/><publisher>AIP Publishing</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic>2770-9000</issnElectronic><keywords/><publishedDay>5</publishedDay><publishedMonth>9</publishedMonth><publishedYear>2023</publishedYear><publishedDate>2023-09-05</publishedDate><doi>10.1063/5.0159289</doi><url/><notes/><college>COLLEGE NANME</college><department>Biosciences Geography and Physics School</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>BGPS</DepartmentCode><institution>Swansea University</institution><apcterm>Other</apcterm><funders>This work was funded through the Welsh Government’s Sêr Cymru II Program “Sustainable Advanced Materials” (Welsh European Funding Office—European Regional Development Fund). 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spelling v2 67901 2024-10-03 Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization 0c9c5b89df9ac882c3e09dd1a9f28fc5 Stefan Zeiske Stefan Zeiske true false 31e8fe57fa180d418afd48c3af280c2e 0000-0002-9049-7414 Paul Meredith Paul Meredith true false 22b270622d739d81e131bec7a819e2fd Ardalan Armin Ardalan Armin true false 49890fbfbe127d4ae94bc10dc2b24199 0000-0002-2534-9626 Gregory Burwell Gregory Burwell true false 2024-10-03 BGPS Indoor photovoltaic (IPV) devices are poised to make a significant contribution to the proliferation of the “Internet of Things” (IoT). For the accurate intercomparison of IPVs (and, hence, to advance the rational development of the technology), lighting conditions representative of those in typical indoor settings must be created reproducibly. As indoor lighting is invariably broadband, this will typically require the use of optical attenuation to achieve varying irradiance conditions at the device under test location. However, most forms of optical attenuation will suffer from some degree of spectral dispersion, creating sources of uncertainty for key figures of merit, such as power conversion efficiency. In this work, we examine the contribution of the mode of optical attenuation to the accurate characterization of IPV systems. We discuss requirements for broadband light source attenuation for the accurate characterization of photovoltaic devices under indoor illumination and consider the importance of using suitable reference devices for light intensity calibration. Furthermore, we experimentally verify attenuation methods typically used, including power control of the light source itself, use of neutral density filters, and advanced attenuation based on tandem prism attenuators. Finally, spectral shape alteration-induced uncertainties in performance parameter determination of photovoltaic cells under indoor illumination are quantified for three common broadband light attenuation methods, where we found ∼2%, ∼6%, and up to ∼15% ambiguity in photovoltaic device efficiency when using LED power control, prism attenuators, and neutral density filter-based broadband light attenuation, respectively. Journal Article APL Energy 1 2 AIP Publishing 2770-9000 5 9 2023 2023-09-05 10.1063/5.0159289 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Other This work was funded through the Welsh Government’s Sêr Cymru II Program “Sustainable Advanced Materials” (Welsh European Funding Office—European Regional Development Fund). P.M. is a Sêr Cymru II Research Chair funded through the Welsh Government’s Sêr Cymru II “Sustainable Advanced Materials” Program (European Regional Development Fund, Welsh European Funding Office, and Swansea University Strategic Initiative). This work was also funded by the UKRI through the EPSRC Program Grant No. EP/T028513/1 Application Targeted and Integrated Photovoltaics. The authors wish to thank George Koutsourakis and James C. Blakesley from National Physical Laboratory (NPL, United Kingdom)forfruitful discussions and Pietro Caprioglio and Michael Farrar for providing perovskite photovoltaic devices. 2024-11-04T16:07:00.2538146 2024-10-03T14:16:34.1384164 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Stefan Zeiske 1 Paul Meredith 0000-0002-9049-7414 2 Ardalan Armin 3 Gregory Burwell 0000-0002-2534-9626 4 67901__32839__4b4c394df68543f79c6a671920e7fd6a.pdf 67901.VoR.pdf 2024-11-04T15:51:22.9521769 Output 4752985 application/pdf Version of Record true © 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license. true eng http://creativecommons.org/licenses/by/4.0/).
title Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
spellingShingle Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
Stefan Zeiske
Paul Meredith
Ardalan Armin
Gregory Burwell
title_short Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
title_full Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
title_fullStr Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
title_full_unstemmed Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
title_sort Importance of spectrally invariant broadband attenuation of light in indoor photovoltaic characterization
author_id_str_mv 0c9c5b89df9ac882c3e09dd1a9f28fc5
31e8fe57fa180d418afd48c3af280c2e
22b270622d739d81e131bec7a819e2fd
49890fbfbe127d4ae94bc10dc2b24199
author_id_fullname_str_mv 0c9c5b89df9ac882c3e09dd1a9f28fc5_***_Stefan Zeiske
31e8fe57fa180d418afd48c3af280c2e_***_Paul Meredith
22b270622d739d81e131bec7a819e2fd_***_Ardalan Armin
49890fbfbe127d4ae94bc10dc2b24199_***_Gregory Burwell
author Stefan Zeiske
Paul Meredith
Ardalan Armin
Gregory Burwell
author2 Stefan Zeiske
Paul Meredith
Ardalan Armin
Gregory Burwell
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container_title APL Energy
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container_issue 2
publishDate 2023
institution Swansea University
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doi_str_mv 10.1063/5.0159289
publisher AIP Publishing
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
active_str 0
description Indoor photovoltaic (IPV) devices are poised to make a significant contribution to the proliferation of the “Internet of Things” (IoT). For the accurate intercomparison of IPVs (and, hence, to advance the rational development of the technology), lighting conditions representative of those in typical indoor settings must be created reproducibly. As indoor lighting is invariably broadband, this will typically require the use of optical attenuation to achieve varying irradiance conditions at the device under test location. However, most forms of optical attenuation will suffer from some degree of spectral dispersion, creating sources of uncertainty for key figures of merit, such as power conversion efficiency. In this work, we examine the contribution of the mode of optical attenuation to the accurate characterization of IPV systems. We discuss requirements for broadband light source attenuation for the accurate characterization of photovoltaic devices under indoor illumination and consider the importance of using suitable reference devices for light intensity calibration. Furthermore, we experimentally verify attenuation methods typically used, including power control of the light source itself, use of neutral density filters, and advanced attenuation based on tandem prism attenuators. Finally, spectral shape alteration-induced uncertainties in performance parameter determination of photovoltaic cells under indoor illumination are quantified for three common broadband light attenuation methods, where we found ∼2%, ∼6%, and up to ∼15% ambiguity in photovoltaic device efficiency when using LED power control, prism attenuators, and neutral density filter-based broadband light attenuation, respectively.
published_date 2023-09-05T16:06:58Z
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score 11.035634

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