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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 Orcid Logo

Communications Chemistry, Volume: 2, Issue: 1

Swansea University Authors: Sagar Jain, James Durrant Orcid Logo

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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
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URI: https://cronfa.swan.ac.uk/Record/cronfa51159
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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 0000-0001-8353-7345 James Durrant James Durrant true false 2019-07-22 EEN 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 Engineering COLLEGE CODE EEN Swansea University UKRI, EPSRC, EP/M025020/1 2019-08-15T13:37:07.5625796 2019-07-22T13:49:11.0402572 College of Engineering Engineering Sagar Jain 1 Tomas Edvinsson 2 James Durrant 0000-0001-8353-7345 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 College of Engineering
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hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of 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 2019-08-08T04:04:43Z
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