Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations

Chemical solution deposition (CSD) of epitaxial YBa2Cu3O7 (YBCO) films is a high throughput, cost-effective approach to grow high critical current superconducting conductors for power applications. Achieving high critical currents requires to grow epitaxial films with large thicknesses and this is s...

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Autores: Villarejo, Bohores, Pop, Cornelia, Ricart, Susagna, Mundet, Bernat, Palau, Anna, Roura Grabulosa, Pere, Farjas, Jordi, Puig Molina, Teresa, Obradors, Xavier
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2020
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/215891
Acesso em linha:http://hdl.handle.net/10261/215891
Access Level:Acceso aberto
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spelling Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformationsVillarejo, BohoresPop, CorneliaRicart, SusagnaMundet, BernatPalau, AnnaRoura Grabulosa, PereFarjas, JordiPuig Molina, TeresaObradors, XavierChemical solution deposition (CSD) of epitaxial YBa2Cu3O7 (YBCO) films is a high throughput, cost-effective approach to grow high critical current superconducting conductors for power applications. Achieving high critical currents requires to grow epitaxial films with large thicknesses and this is still an open issue in CSD. Metalorganic precursor solution deposition can be tailored to achieve high film thicknesses, however, the pyrolysis step may heavily compromise the film quality due to the in-plane stress generated by a strong film shrinkage. Here, we disclose the complex relationship existing during the pyrolysis process between the physico-chemical transformations and the microstructure of the films. A low-fluorine trifluoroacetate (TFA) and propionate(prop), route to YBCO films with a final thicknesses in the range of 700 – 800 nm was studied to understand the phenomena. Morphological analysis by in-situ optical microscopy video imaging under specific heating rates allowed to identify the thermokinetic conditions leading to permanent or reversible wrinkling and crack formation. The origin of the microstructural transformations during the pyrolysis of thick films has been disentangled through parallel in-situ analyses of the chemical, thermal and mechanical properties, together with film thickness measurements. A key finding has been the identification of an intermediate liquid phase relieving the compressive stress responsible of wrinkling. Disclosing the origin of the physico - chemical transformations opens the path towards defining optimized pyrolysis processing conditions for high quality single deposition of CSD films.Authors acknowledge the EUROTAPES project (EU-FP7 NMP-LA2012-280432), COACHSUPENERGY (MAT2014-51778-C2-1-R and MAT2014-51778-C2-2-R) and SuMaTe (RTI2018-095853-B-C21 and RTI2018-095853-B-C22) from MINECO (co-financed by the European Regional Development Fund), 2017-SGR 753 from Generalitat de Catalunya, and COST Action NANOCOHYBRI (CA16218). ICMAB authors acknowledge the Center of Excellence award Severo Ochoa SEV-2015-0496. Authors acknowledge the Scientific Services at ICMAB and ICN2 Electron Microscopy Division. We thank CNM-IMB for the use of their FIB services.Peer reviewedRoyal Society of Chemistry (UK)European CommissionMinisterio de Economía y Competitividad (España)Generalitat de CatalunyaEuropean Cooperation in Science and TechnologyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/215891reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/280432info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-51778-C2-1-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-51778-C2-2-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095853-B-C21info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095853-B-C22info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2015-0496http://dx.doi.org/10.1039/D0TC01846ESíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2158912026-05-22T06:33:51Z
dc.title.none.fl_str_mv Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
title Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
spellingShingle Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
Villarejo, Bohores
title_short Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
title_full Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
title_fullStr Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
title_full_unstemmed Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
title_sort Pyrolysis study of solution-derived superconducting YBa2Cu3O7 films: disentangling the physico-chemical transformations
dc.creator.none.fl_str_mv Villarejo, Bohores
Pop, Cornelia
Ricart, Susagna
Mundet, Bernat
Palau, Anna
Roura Grabulosa, Pere
Farjas, Jordi
Puig Molina, Teresa
Obradors, Xavier
author Villarejo, Bohores
author_facet Villarejo, Bohores
Pop, Cornelia
Ricart, Susagna
Mundet, Bernat
Palau, Anna
Roura Grabulosa, Pere
Farjas, Jordi
Puig Molina, Teresa
Obradors, Xavier
author_role author
author2 Pop, Cornelia
Ricart, Susagna
Mundet, Bernat
Palau, Anna
Roura Grabulosa, Pere
Farjas, Jordi
Puig Molina, Teresa
Obradors, Xavier
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Economía y Competitividad (España)
Generalitat de Catalunya
European Cooperation in Science and Technology
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Chemical solution deposition (CSD) of epitaxial YBa2Cu3O7 (YBCO) films is a high throughput, cost-effective approach to grow high critical current superconducting conductors for power applications. Achieving high critical currents requires to grow epitaxial films with large thicknesses and this is still an open issue in CSD. Metalorganic precursor solution deposition can be tailored to achieve high film thicknesses, however, the pyrolysis step may heavily compromise the film quality due to the in-plane stress generated by a strong film shrinkage. Here, we disclose the complex relationship existing during the pyrolysis process between the physico-chemical transformations and the microstructure of the films. A low-fluorine trifluoroacetate (TFA) and propionate(prop), route to YBCO films with a final thicknesses in the range of 700 – 800 nm was studied to understand the phenomena. Morphological analysis by in-situ optical microscopy video imaging under specific heating rates allowed to identify the thermokinetic conditions leading to permanent or reversible wrinkling and crack formation. The origin of the microstructural transformations during the pyrolysis of thick films has been disentangled through parallel in-situ analyses of the chemical, thermal and mechanical properties, together with film thickness measurements. A key finding has been the identification of an intermediate liquid phase relieving the compressive stress responsible of wrinkling. Disclosing the origin of the physico - chemical transformations opens the path towards defining optimized pyrolysis processing conditions for high quality single deposition of CSD films.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/215891
url http://hdl.handle.net/10261/215891
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/EC/FP7/280432
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-51778-C2-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-51778-C2-2-R
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095853-B-C21
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095853-B-C22
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2015-0496
http://dx.doi.org/10.1039/D0TC01846E
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
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