Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent

Jain, Sagar; Edvinsson, Tomas; Durrant, James

doi:10.1038/s42004-019-0195-3

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Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent

Sagar Jain, Tomas Edvinsson, James Durrant

Communications Chemistry, Volume: 2, Issue: 1

Swansea University Authors: Sagar Jain, James Durrant

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DOI (Published version): 10.1038/s42004-019-0195-3

Abstract

The very fast evolution in certified efficiency of lead-halide organic-inorganic perovskite solar cells to 24.2%, on par and even surpassing the record for polycrystalline silicon solar cells (22.3%), bears the promise of a new era in photovoltaics and revitalisation of thin film solar cell technolo...

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Published in:	Communications Chemistry
ISSN:	2399-3669
Published:	Nature Research (Springer) 2019
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa51159

first_indexed	2019-07-22T15:41:19Z
last_indexed	2019-08-15T15:29:56Z
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spelling	2019-08-15T13:37:07.5625796 v2 51159 2019-07-22 Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent 7073e179bb5b82db3e3efd3a8cd07139 Sagar Jain Sagar Jain true false f3dd64bc260e5c07adfa916c27dbd58a James Durrant James Durrant true false 2019-07-22 The very fast evolution in certified efficiency of lead-halide organic-inorganic perovskite solar cells to 24.2%, on par and even surpassing the record for polycrystalline silicon solar cells (22.3%), bears the promise of a new era in photovoltaics and revitalisation of thin film solar cell technologies. However, the presence of toxic lead and particularly toxic solvents during the fabrication process makes large-scale manufacturing of perovskite solar cells challenging due to legislation and environment issues. For lead-free alternatives, non-toxic tin, antimony and bismuth based solar cells still rely on up-scalable fabrication processes that employ toxic solvents. Here we employ non-toxic methyl-acetate solution processed (CH3NH3)3Bi2I9 films to fabricate lead-free, bismuth based (CH3NH3)3Bi2I9 perovskites on mesoporous TiO2 architecture using a sustainable route. Optoelectronic characterization, X-ray diffraction and electron microscopy show that the route can provide homogeneous and good quality (CH3NH3)3Bi2I9 films. Fine-tuning the perovskite/hole transport layer interface by the use of conventional 2,2′,7,7′-tetrakis (N,N′-di-p-methoxyphenylamino)−9,9′-spirbiuorene, known as Spiro-OMeTAD, and poly(3-hexylthiophene-2,5-diyl - P3HT as hole transporting materials, yields power conversion efficiencies of 1.12% and 1.62% under 1 sun illumination. Devices prepared using poly(3-hexylthiophene-2,5-diyl hole transport layer shown 300 h of stability under continuous 1 sun illumination, without the use of an ultra violet-filter. Journal Article Communications Chemistry 2 1 Nature Research (Springer) 2399-3669 8 8 2019 2019-08-08 10.1038/s42004-019-0195-3 COLLEGE NANME COLLEGE CODE Swansea University UKRI, EPSRC, EP/M025020/1 2019-08-15T13:37:07.5625796 2019-07-22T13:49:11.0402572 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Sagar Jain 1 Tomas Edvinsson 2 James Durrant 3 0051159-14082019134156.pdf jain2019.pdf 2019-08-14T13:41:56.4530000 Output 962320 application/pdf Version of Record true 2019-08-14T00:00:00.0000000 Released under the terms of a Creative Commons Attribution 4.0 International License (CC-BY). true eng
title	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
spellingShingle	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent Sagar Jain James Durrant
title_short	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
title_full	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
title_fullStr	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
title_full_unstemmed	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
title_sort	Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent
author_id_str_mv	7073e179bb5b82db3e3efd3a8cd07139 f3dd64bc260e5c07adfa916c27dbd58a
author_id_fullname_str_mv	7073e179bb5b82db3e3efd3a8cd07139_*_Sagar Jain f3dd64bc260e5c07adfa916c27dbd58a_*_James Durrant
author	Sagar Jain James Durrant
author2	Sagar Jain Tomas Edvinsson James Durrant
format	Journal article
container_title	Communications Chemistry
container_volume	2
container_issue	1
publishDate	2019
institution	Swansea University
issn	2399-3669
doi_str_mv	10.1038/s42004-019-0195-3
publisher	Nature Research (Springer)
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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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
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description	The very fast evolution in certified efficiency of lead-halide organic-inorganic perovskite solar cells to 24.2%, on par and even surpassing the record for polycrystalline silicon solar cells (22.3%), bears the promise of a new era in photovoltaics and revitalisation of thin film solar cell technologies. However, the presence of toxic lead and particularly toxic solvents during the fabrication process makes large-scale manufacturing of perovskite solar cells challenging due to legislation and environment issues. For lead-free alternatives, non-toxic tin, antimony and bismuth based solar cells still rely on up-scalable fabrication processes that employ toxic solvents. Here we employ non-toxic methyl-acetate solution processed (CH3NH3)3Bi2I9 films to fabricate lead-free, bismuth based (CH3NH3)3Bi2I9 perovskites on mesoporous TiO2 architecture using a sustainable route. Optoelectronic characterization, X-ray diffraction and electron microscopy show that the route can provide homogeneous and good quality (CH3NH3)3Bi2I9 films. Fine-tuning the perovskite/hole transport layer interface by the use of conventional 2,2′,7,7′-tetrakis (N,N′-di-p-methoxyphenylamino)−9,9′-spirbiuorene, known as Spiro-OMeTAD, and poly(3-hexylthiophene-2,5-diyl - P3HT as hole transporting materials, yields power conversion efficiencies of 1.12% and 1.62% under 1 sun illumination. Devices prepared using poly(3-hexylthiophene-2,5-diyl hole transport layer shown 300 h of stability under continuous 1 sun illumination, without the use of an ultra violet-filter.
published_date	2019-08-08T08:41:23Z
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Green fabrication of stable lead-free bismuth based perovskite solar cells using a non-toxic solvent

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