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Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD

Andrew Claypole, M.A. Baker, S. Babar, R. Grilli, P.N. Gibson, Giray Kartopu, D.A. Lamb, V. Barrioz, Stuart Irvine, Andrew Clayton Orcid Logo

Materials Chemistry and Physics, Volume: 192, Pages: 244 - 252

Swansea University Authors: Andrew Claypole, Giray Kartopu, Stuart Irvine, Andrew Clayton Orcid Logo

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DOI (Published version): 10.1016/j.matchemphys.2017.01.067

Abstract

Ultra-thin CdTe:As/Cd1-xZnxS photovoltaic solar cells with an absorber thickness of 0.5 μm were deposited by metal-organic chemical vapour deposition on indium tin oxide coated boro-aluminosilicate substrates. The Zn precursor concentration was varied to compensate for Zn leaching effects after CdCl...

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Published in: Materials Chemistry and Physics
ISSN: 0254-0584
Published: Elsevier BV 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa31732
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spelling v2 31732 2017-01-24 Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD f67f965e32151fcd26f52f9db57d7baa Andrew Claypole Andrew Claypole true false 5c4917e0a29801844ec31737672f930c Giray Kartopu Giray Kartopu true false 1ddb966eccef99aa96e87f1ea4917f1f Stuart Irvine Stuart Irvine true false cdef4ab8032ae2213a97638baac8176f 0000-0002-1540-0440 Andrew Clayton Andrew Clayton true false 2017-01-24 MECH Ultra-thin CdTe:As/Cd1-xZnxS photovoltaic solar cells with an absorber thickness of 0.5 μm were deposited by metal-organic chemical vapour deposition on indium tin oxide coated boro-aluminosilicate substrates. The Zn precursor concentration was varied to compensate for Zn leaching effects after CdCl2 activation treatment. Analysis of the solar cell composition and structure by X-ray photoelectron spectroscopy depth profiling and X-ray diffraction showed that higher concentrations of Zn in the Cd1-xZnxS window layer resulted in suppression of S diffusion across the CdTe/Cd1-xZnxS interface after CdCl2 activation treatment. Excessive Zn content in the Cd1-xZnxS alloy preserved the spectral response in the blue region of the solar spectrum, but increased series resistance for the solar cells. A modest increase in the Zn content of the Cd1-xZnxS alloy together with a post-deposition air anneal resulted in an improved blue response and an enhanced open circuit voltage and fill factor. This device yielded a mean efficiency of 8.3% over 8 cells (0.25 cm2 cell area) and best cell efficiency of 8.8%. Journal Article Materials Chemistry and Physics 192 244 252 Elsevier BV 0254-0584 1 5 2017 2017-05-01 10.1016/j.matchemphys.2017.01.067 http://dx.doi.org/10.1016/j.matchemphys.2017.01.067 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2023-06-02T14:59:46.2426662 2017-01-24T12:11:01.9508974 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Andrew Claypole 1 M.A. Baker 2 S. Babar 3 R. Grilli 4 P.N. Gibson 5 Giray Kartopu 6 D.A. Lamb 7 V. Barrioz 8 Stuart Irvine 9 Andrew Clayton 0000-0002-1540-0440 10 0031732-25012017091704.pdf clayton2017(2).pdf 2017-01-25T09:17:04.5300000 Output 1258912 application/pdf Accepted Manuscript true 2018-01-25T00:00:00.0000000 false
title Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
spellingShingle Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
Andrew Claypole
Giray Kartopu
Stuart Irvine
Andrew Clayton
title_short Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
title_full Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
title_fullStr Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
title_full_unstemmed Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
title_sort Effects of Cd 1-x Zn x S alloy composition and post-deposition air anneal on ultra-thin CdTe solar cells produced by MOCVD
author_id_str_mv f67f965e32151fcd26f52f9db57d7baa
5c4917e0a29801844ec31737672f930c
1ddb966eccef99aa96e87f1ea4917f1f
cdef4ab8032ae2213a97638baac8176f
author_id_fullname_str_mv f67f965e32151fcd26f52f9db57d7baa_***_Andrew Claypole
5c4917e0a29801844ec31737672f930c_***_Giray Kartopu
1ddb966eccef99aa96e87f1ea4917f1f_***_Stuart Irvine
cdef4ab8032ae2213a97638baac8176f_***_Andrew Clayton
author Andrew Claypole
Giray Kartopu
Stuart Irvine
Andrew Clayton
author2 Andrew Claypole
M.A. Baker
S. Babar
R. Grilli
P.N. Gibson
Giray Kartopu
D.A. Lamb
V. Barrioz
Stuart Irvine
Andrew Clayton
format Journal article
container_title Materials Chemistry and Physics
container_volume 192
container_start_page 244
publishDate 2017
institution Swansea University
issn 0254-0584
doi_str_mv 10.1016/j.matchemphys.2017.01.067
publisher Elsevier BV
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 Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
url http://dx.doi.org/10.1016/j.matchemphys.2017.01.067
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description Ultra-thin CdTe:As/Cd1-xZnxS photovoltaic solar cells with an absorber thickness of 0.5 μm were deposited by metal-organic chemical vapour deposition on indium tin oxide coated boro-aluminosilicate substrates. The Zn precursor concentration was varied to compensate for Zn leaching effects after CdCl2 activation treatment. Analysis of the solar cell composition and structure by X-ray photoelectron spectroscopy depth profiling and X-ray diffraction showed that higher concentrations of Zn in the Cd1-xZnxS window layer resulted in suppression of S diffusion across the CdTe/Cd1-xZnxS interface after CdCl2 activation treatment. Excessive Zn content in the Cd1-xZnxS alloy preserved the spectral response in the blue region of the solar spectrum, but increased series resistance for the solar cells. A modest increase in the Zn content of the Cd1-xZnxS alloy together with a post-deposition air anneal resulted in an improved blue response and an enhanced open circuit voltage and fill factor. This device yielded a mean efficiency of 8.3% over 8 cells (0.25 cm2 cell area) and best cell efficiency of 8.8%.
published_date 2017-05-01T14:59:44Z
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