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Azetidinium lead iodide for perovskite solar cells

S. R. Pering, W. Deng, J. R. Troughton, P. S. Kubiak, D. Ghosh, R. G. Niemann, F. Brivio, F. E. Jeffrey, A. B. Walker, M. S. Islam, T. M. Watson, P. R. Raithby, A. L. Johnson, S. E. Lewis, P. J. Cameron, Trystan Watson Orcid Logo

J. Mater. Chem. A, Volume: 5, Issue: 39, Pages: 20658 - 20665

Swansea University Author: Trystan Watson Orcid Logo

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DOI (Published version): 10.1039/C7TA07545F

Abstract

Hybrid organic–inorganic perovskites have been established as good candidate materials for emerging photovoltaics, with device efficiencies of over 22% being reported. There are currently only two organic cations, methylammonium and formamidinium, which produce 3D perovskites with band gaps suitable...

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Published in: J. Mater. Chem. A
ISSN: 2050-7488 2050-7496
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa35250
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spelling 2018-04-18T16:42:42.8301242 v2 35250 2017-09-13 Azetidinium lead iodide for perovskite solar cells a210327b52472cfe8df9b8108d661457 0000-0002-8015-1436 Trystan Watson Trystan Watson true false 2017-09-13 MTLS Hybrid organic–inorganic perovskites have been established as good candidate materials for emerging photovoltaics, with device efficiencies of over 22% being reported. There are currently only two organic cations, methylammonium and formamidinium, which produce 3D perovskites with band gaps suitable for photovoltaic devices. Numerous computational studies have identified azetidinium as a potential third cation for synthesizing organic–inorganic perovskites, but to date no experimental reports of azetidinium containing perovskites have been published. Here we prepare azetidinium lead iodide for the first time. Azetidinium lead iodide is a stable, bright orange material which does not appear to form a 3D or a 2D perovskite. It was successfully used as the absorber layer in solar cells. We also show that it is possible to make mixed cation devices by adding the azetidinium cation to methylammonium lead iodide. Computational studies show that the substitution of up to 5% azetidinium into the methylammonium lead iodide is energetically favourable and that phase separation does not occur at these concentrations. Mixed azetidinium–methylammonium cells show improved performance and reduced hysteresis compared to methylammonium lead iodide cells. Journal Article J. Mater. Chem. A 5 39 20658 20665 2050-7488 2050-7496 31 12 2017 2017-12-31 10.1039/C7TA07545F COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2018-04-18T16:42:42.8301242 2017-09-13T15:46:47.7583648 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering S. R. Pering 1 W. Deng 2 J. R. Troughton 3 P. S. Kubiak 4 D. Ghosh 5 R. G. Niemann 6 F. Brivio 7 F. E. Jeffrey 8 A. B. Walker 9 M. S. Islam 10 T. M. Watson 11 P. R. Raithby 12 A. L. Johnson 13 S. E. Lewis 14 P. J. Cameron 15 Trystan Watson 0000-0002-8015-1436 16 0035250-04102017105807.pdf pering2017(2).pdf 2017-10-04T10:58:07.9100000 Output 956454 application/pdf Version of Record true 2017-10-04T00:00:00.0000000 CC-BY-NC Licence true eng
title Azetidinium lead iodide for perovskite solar cells
spellingShingle Azetidinium lead iodide for perovskite solar cells
Trystan Watson
title_short Azetidinium lead iodide for perovskite solar cells
title_full Azetidinium lead iodide for perovskite solar cells
title_fullStr Azetidinium lead iodide for perovskite solar cells
title_full_unstemmed Azetidinium lead iodide for perovskite solar cells
title_sort Azetidinium lead iodide for perovskite solar cells
author_id_str_mv a210327b52472cfe8df9b8108d661457
author_id_fullname_str_mv a210327b52472cfe8df9b8108d661457_***_Trystan Watson
author Trystan Watson
author2 S. R. Pering
W. Deng
J. R. Troughton
P. S. Kubiak
D. Ghosh
R. G. Niemann
F. Brivio
F. E. Jeffrey
A. B. Walker
M. S. Islam
T. M. Watson
P. R. Raithby
A. L. Johnson
S. E. Lewis
P. J. Cameron
Trystan Watson
format Journal article
container_title J. Mater. Chem. A
container_volume 5
container_issue 39
container_start_page 20658
publishDate 2017
institution Swansea University
issn 2050-7488
2050-7496
doi_str_mv 10.1039/C7TA07545F
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 Hybrid organic–inorganic perovskites have been established as good candidate materials for emerging photovoltaics, with device efficiencies of over 22% being reported. There are currently only two organic cations, methylammonium and formamidinium, which produce 3D perovskites with band gaps suitable for photovoltaic devices. Numerous computational studies have identified azetidinium as a potential third cation for synthesizing organic–inorganic perovskites, but to date no experimental reports of azetidinium containing perovskites have been published. Here we prepare azetidinium lead iodide for the first time. Azetidinium lead iodide is a stable, bright orange material which does not appear to form a 3D or a 2D perovskite. It was successfully used as the absorber layer in solar cells. We also show that it is possible to make mixed cation devices by adding the azetidinium cation to methylammonium lead iodide. Computational studies show that the substitution of up to 5% azetidinium into the methylammonium lead iodide is energetically favourable and that phase separation does not occur at these concentrations. Mixed azetidinium–methylammonium cells show improved performance and reduced hysteresis compared to methylammonium lead iodide cells.
published_date 2017-12-31T03:43:49Z
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score 11.016771

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