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Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents

Eurig Jones, Peter Holliman Orcid Logo, Leon Bowen, Arthur Connell, Chris Kershaw, Diana Meza Rojas

Materials, Volume: 13, Issue: 1, Start page: 243

Swansea University Authors: Eurig Jones, Peter Holliman Orcid Logo, Arthur Connell, Chris Kershaw, Diana Meza Rojas

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DOI (Published version): 10.3390/ma13010243

Abstract

We report the synthesis of organometal halide perovskites by milling CH3NH3I and PbI2 directly with an Al2O3 scaffold to create hybrid Al2O3-CH3NH3PbI3 perovskites, without the use of organic capping ligands that otherwise limit the growth of the material in the three dimensions. Not only does this...

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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/cronfa53740
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Not only does this improve the ambient stability of perovskites in air (100 min versus 5 min for dimethylformamide (DMF)-processed material), the method also uses much fewer toxic solvents (terpineol versus dimethylformamide). This has been achieved by solid-state reaction of the perovskite precursors to produce larger perovskite nanoparticles. The resulting hybrid perovskite&#x2013;alumina particles effectively improve the hydrophobicity of the perovskite phase whilst the increased thermal mass of the Al2O3 increases the thermal stability of the organic cation. Raman data show the incorporation of Al2O3 shifts the perovskite spectrum, suggesting the formation of a hybrid 3D mesoporous stack. Laser-induced current mapping (LBIC) and superoxide generation measurements, coupled to thermogravimetric analysis, show that these hybrid perovskites demonstrate slightly improved oxygen and thermal stability, whilst ultra-fast X-ray diffraction studies using synchrotron radiation show substantial (20&#xD7;) increase in humidity stability. 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spelling 2020-10-27T14:04:57.2328168 v2 53740 2020-03-05 Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents c6d92fb58a378914f3fdff316a9b4b29 Eurig Jones Eurig Jones true false c8f52394d776279c9c690dc26066ddf9 0000-0002-9911-8513 Peter Holliman Peter Holliman true false 03967ce19a2f81a255587c196f6ede3f Arthur Connell Arthur Connell true false 712418e62ef36662d4034e102107a1c8 Chris Kershaw Chris Kershaw true false 92aa16279e84326a8b8a808af38a7fdc Diana Meza Rojas Diana Meza Rojas true false 2020-03-05 MTLS We report the synthesis of organometal halide perovskites by milling CH3NH3I and PbI2 directly with an Al2O3 scaffold to create hybrid Al2O3-CH3NH3PbI3 perovskites, without the use of organic capping ligands that otherwise limit the growth of the material in the three dimensions. Not only does this improve the ambient stability of perovskites in air (100 min versus 5 min for dimethylformamide (DMF)-processed material), the method also uses much fewer toxic solvents (terpineol versus dimethylformamide). This has been achieved by solid-state reaction of the perovskite precursors to produce larger perovskite nanoparticles. The resulting hybrid perovskite–alumina particles effectively improve the hydrophobicity of the perovskite phase whilst the increased thermal mass of the Al2O3 increases the thermal stability of the organic cation. Raman data show the incorporation of Al2O3 shifts the perovskite spectrum, suggesting the formation of a hybrid 3D mesoporous stack. Laser-induced current mapping (LBIC) and superoxide generation measurements, coupled to thermogravimetric analysis, show that these hybrid perovskites demonstrate slightly improved oxygen and thermal stability, whilst ultra-fast X-ray diffraction studies using synchrotron radiation show substantial (20×) increase in humidity stability. Overall, these data show considerably improved ambient stability of the hybrid perovskites compared to the solution-processed material. Journal Article Materials 13 1 243 MDPI AG 1996-1944 perovskite; upscaling; lifetime; humidity; coating; stability; non-toxic 6 1 2020 2020-01-06 10.3390/ma13010243 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2020-10-27T14:04:57.2328168 2020-03-05T09:18:51.9853188 College of Engineering Engineering Eurig Jones 1 Peter Holliman 0000-0002-9911-8513 2 Leon Bowen 3 Arthur Connell 4 Chris Kershaw 5 Diana Meza Rojas 6 53740__16773__879aebd1778f4608a4d524de5965c62b.pdf wynjones2020.pdf 2020-03-05T09:20:03.8087596 Output 4109583 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
spellingShingle Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
Eurig Jones
Peter Holliman
Arthur Connell
Chris Kershaw
Diana Meza Rojas
title_short Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
title_full Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
title_fullStr Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
title_full_unstemmed Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
title_sort Hybrid Al2O3-CH3NH3PbI3 Perovskites towards Avoiding Toxic Solvents
author_id_str_mv c6d92fb58a378914f3fdff316a9b4b29
c8f52394d776279c9c690dc26066ddf9
03967ce19a2f81a255587c196f6ede3f
712418e62ef36662d4034e102107a1c8
92aa16279e84326a8b8a808af38a7fdc
author_id_fullname_str_mv c6d92fb58a378914f3fdff316a9b4b29_***_Eurig Jones
c8f52394d776279c9c690dc26066ddf9_***_Peter Holliman
03967ce19a2f81a255587c196f6ede3f_***_Arthur Connell
712418e62ef36662d4034e102107a1c8_***_Chris Kershaw
92aa16279e84326a8b8a808af38a7fdc_***_Diana Meza Rojas
author Eurig Jones
Peter Holliman
Arthur Connell
Chris Kershaw
Diana Meza Rojas
author2 Eurig Jones
Peter Holliman
Leon Bowen
Arthur Connell
Chris Kershaw
Diana Meza Rojas
format Journal article
container_title Materials
container_volume 13
container_issue 1
container_start_page 243
publishDate 2020
institution Swansea University
issn 1996-1944
doi_str_mv 10.3390/ma13010243
publisher MDPI AG
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 We report the synthesis of organometal halide perovskites by milling CH3NH3I and PbI2 directly with an Al2O3 scaffold to create hybrid Al2O3-CH3NH3PbI3 perovskites, without the use of organic capping ligands that otherwise limit the growth of the material in the three dimensions. Not only does this improve the ambient stability of perovskites in air (100 min versus 5 min for dimethylformamide (DMF)-processed material), the method also uses much fewer toxic solvents (terpineol versus dimethylformamide). This has been achieved by solid-state reaction of the perovskite precursors to produce larger perovskite nanoparticles. The resulting hybrid perovskite–alumina particles effectively improve the hydrophobicity of the perovskite phase whilst the increased thermal mass of the Al2O3 increases the thermal stability of the organic cation. Raman data show the incorporation of Al2O3 shifts the perovskite spectrum, suggesting the formation of a hybrid 3D mesoporous stack. Laser-induced current mapping (LBIC) and superoxide generation measurements, coupled to thermogravimetric analysis, show that these hybrid perovskites demonstrate slightly improved oxygen and thermal stability, whilst ultra-fast X-ray diffraction studies using synchrotron radiation show substantial (20×) increase in humidity stability. Overall, these data show considerably improved ambient stability of the hybrid perovskites compared to the solution-processed material.
published_date 2020-01-06T04:08:05Z
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