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Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells

Mehmet Koç, Giray Kartopu, Selcuk Yerci

Materials, Volume: 13, Issue: 8, Start page: 1860

Swansea University Author: Giray Kartopu

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DOI (Published version): 10.3390/ma13081860

Abstract

Although the fundamental limits have been established for the single junction solar cells, tandem configurations are one of the promising approaches to surpass these limits. One of the candidates for the top cell absorber is CdTe, as the CdTe photovoltaic technology has significant advantages: stabi...

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Published in: Materials
ISSN: 1996-1944
Published: MDPI AG 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa54321
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spelling 2022-11-24T10:39:45.5538591 v2 54321 2020-05-27 Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells 5c4917e0a29801844ec31737672f930c Giray Kartopu Giray Kartopu true false 2020-05-27 MTLS Although the fundamental limits have been established for the single junction solar cells, tandem configurations are one of the promising approaches to surpass these limits. One of the candidates for the top cell absorber is CdTe, as the CdTe photovoltaic technology has significant advantages: stability, high performance, and relatively inexpensive. In addition, it is possible to tune the CdTe bandgap by introducing, for example, Zn into the composition, forming Cd1−xZnxTe alloys, which can fulfill the Shockley–Queisser limit design criteria for tandem devices. The interdigitated back contact (IBC) silicon solar cells presented record high efficiencies recently, making them an attractive candidate for the rear cell. In this work, we present a combined optical and electrical optimization of Cd1−xZnxTe/IBC Si tandem configurations. Optical and electrical loss mechanisms are addressed, and individual layers are optimized. Alternative electron transport layers and transparent conductive electrodes are discussed for maximizing the top cell and tandem efficiency. Journal Article Materials 13 8 1860 MDPI AG 1996-1944 photovoltaic cell; tandem cell; CdTe; CdZnTe; ZnTe; c-Si; IBC silicon cell 15 4 2020 2020-04-15 10.3390/ma13081860 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2022-11-24T10:39:45.5538591 2020-05-27T09:27:11.9274904 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Mehmet Koç 1 Giray Kartopu 2 Selcuk Yerci 3 54321__17355__a4ddf93d1f61459bbcd9044b6d3f77d2.pdf 54321.pdf 2020-05-27T09:28:34.4624285 Output 2095703 application/pdf Version of Record true This is an open access article distributed under the Creative Commons Attribution License (CC-BY). true English https://creativecommons.org/licenses/by/4.0/
title Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
spellingShingle Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
Giray Kartopu
title_short Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
title_full Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
title_fullStr Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
title_full_unstemmed Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
title_sort Combined Optical-Electrical Optimization of Cd1−xZnxTe/Silicon Tandem Solar Cells
author_id_str_mv 5c4917e0a29801844ec31737672f930c
author_id_fullname_str_mv 5c4917e0a29801844ec31737672f930c_***_Giray Kartopu
author Giray Kartopu
author2 Mehmet Koç
Giray Kartopu
Selcuk Yerci
format Journal article
container_title Materials
container_volume 13
container_issue 8
container_start_page 1860
publishDate 2020
institution Swansea University
issn 1996-1944
doi_str_mv 10.3390/ma13081860
publisher MDPI AG
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 Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description Although the fundamental limits have been established for the single junction solar cells, tandem configurations are one of the promising approaches to surpass these limits. One of the candidates for the top cell absorber is CdTe, as the CdTe photovoltaic technology has significant advantages: stability, high performance, and relatively inexpensive. In addition, it is possible to tune the CdTe bandgap by introducing, for example, Zn into the composition, forming Cd1−xZnxTe alloys, which can fulfill the Shockley–Queisser limit design criteria for tandem devices. The interdigitated back contact (IBC) silicon solar cells presented record high efficiencies recently, making them an attractive candidate for the rear cell. In this work, we present a combined optical and electrical optimization of Cd1−xZnxTe/IBC Si tandem configurations. Optical and electrical loss mechanisms are addressed, and individual layers are optimized. Alternative electron transport layers and transparent conductive electrodes are discussed for maximizing the top cell and tandem efficiency.
published_date 2020-04-15T04:07:47Z
_version_ 1763753557025095680
score 11.014067

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