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Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells

Peter Holliman Orcid Logo, Arthur Connell, Eurig Jones, Chris Kershaw

Materials, Volume: 13, Issue: 4, Start page: 949

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

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DOI (Published version): 10.3390/ma13040949

Abstract

Whilst the highest power conversion efficiency (PCE) perovskite solar cell (PSC) devices that have reported to date have been fabricated by high temperature sintering (>500 °C) of mesoporous metal oxide scaffolds, lower temperature processing is desirable for increasing the range of substrates av...

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Published in: Materials
ISSN: 1996-1944
Published: MDPI AG 2020
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spelling 2020-10-23T11:34:44.8293777 v2 53743 2020-03-05 Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells c8f52394d776279c9c690dc26066ddf9 0000-0002-9911-8513 Peter Holliman Peter Holliman true false 03967ce19a2f81a255587c196f6ede3f Arthur Connell Arthur Connell true false c6d92fb58a378914f3fdff316a9b4b29 Eurig Jones Eurig Jones true false 712418e62ef36662d4034e102107a1c8 Chris Kershaw Chris Kershaw true false 2020-03-05 MTLS Whilst the highest power conversion efficiency (PCE) perovskite solar cell (PSC) devices that have reported to date have been fabricated by high temperature sintering (>500 °C) of mesoporous metal oxide scaffolds, lower temperature processing is desirable for increasing the range of substrates available and also decrease the energy requirements during device manufacture. In this work, titanium dioxide (TiO2) mesoporous scaffolds have been compared with metal oxide oxidation catalysts: cerium dioxide (CeO2) and manganese dioxide (MnO2). For MnO2, to the best of our knowledge, this is the first time a low energy band gap metal oxide has been used as a scaffold in the PSC devices. Thermal gravimetric analysis (TGA) shows that organic binder removal is completed at temperatures of 350 °C and 275 °C for CeO2 and MnO2, respectively. By comparison, the binder removal from TiO2 pastes requires temperatures >500 °C. CH3NH3PbBr3 PSC devices that were fabricated while using MnO2 pastes sintered at 550 °C show slightly improved PCE (η = 3.9%) versus mesoporous TiO2 devices (η = 3.8%) as a result of increased open circuit voltage (Voc). However, the resultant PSC devices showed no efficiency despite apparently complete binder removal during lower temperature (325 °C) sintering using CeO2 or MnO2 pastes. Journal Article Materials 13 4 949 MDPI AG 1996-1944 organolead Perovskite; low temperature sintering; mesoporous scaffold; oxidation catalyst 20 2 2020 2020-02-20 10.3390/ma13040949 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2020-10-23T11:34:44.8293777 2020-03-05T10:05:25.5922360 College of Engineering Engineering Peter Holliman 0000-0002-9911-8513 1 Arthur Connell 2 Eurig Jones 3 Chris Kershaw 4 53743__16776__967de792bb8a418bbe55573ce85cefeb.pdf holliman2020.pdf 2020-03-05T10:07:08.6944637 Output 4780446 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 Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
spellingShingle Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
Peter Holliman
Arthur Connell
Eurig Jones
Chris Kershaw
title_short Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
title_full Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
title_fullStr Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
title_full_unstemmed Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
title_sort Metal Oxide Oxidation Catalysts as Scaffolds for Perovskite Solar Cells
author_id_str_mv c8f52394d776279c9c690dc26066ddf9
03967ce19a2f81a255587c196f6ede3f
c6d92fb58a378914f3fdff316a9b4b29
712418e62ef36662d4034e102107a1c8
author_id_fullname_str_mv c8f52394d776279c9c690dc26066ddf9_***_Peter Holliman
03967ce19a2f81a255587c196f6ede3f_***_Arthur Connell
c6d92fb58a378914f3fdff316a9b4b29_***_Eurig Jones
712418e62ef36662d4034e102107a1c8_***_Chris Kershaw
author Peter Holliman
Arthur Connell
Eurig Jones
Chris Kershaw
author2 Peter Holliman
Arthur Connell
Eurig Jones
Chris Kershaw
format Journal article
container_title Materials
container_volume 13
container_issue 4
container_start_page 949
publishDate 2020
institution Swansea University
issn 1996-1944
doi_str_mv 10.3390/ma13040949
publisher MDPI AG
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description Whilst the highest power conversion efficiency (PCE) perovskite solar cell (PSC) devices that have reported to date have been fabricated by high temperature sintering (>500 °C) of mesoporous metal oxide scaffolds, lower temperature processing is desirable for increasing the range of substrates available and also decrease the energy requirements during device manufacture. In this work, titanium dioxide (TiO2) mesoporous scaffolds have been compared with metal oxide oxidation catalysts: cerium dioxide (CeO2) and manganese dioxide (MnO2). For MnO2, to the best of our knowledge, this is the first time a low energy band gap metal oxide has been used as a scaffold in the PSC devices. Thermal gravimetric analysis (TGA) shows that organic binder removal is completed at temperatures of 350 °C and 275 °C for CeO2 and MnO2, respectively. By comparison, the binder removal from TiO2 pastes requires temperatures >500 °C. CH3NH3PbBr3 PSC devices that were fabricated while using MnO2 pastes sintered at 550 °C show slightly improved PCE (η = 3.9%) versus mesoporous TiO2 devices (η = 3.8%) as a result of increased open circuit voltage (Voc). However, the resultant PSC devices showed no efficiency despite apparently complete binder removal during lower temperature (325 °C) sintering using CeO2 or MnO2 pastes.
published_date 2020-02-20T04:08:06Z
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