Relevance of the Formation of Intermediate Non-Equilibrium Phases in YBa2Cu3O7-x Film Growth by Transient Liquid-Assisted Growth
dc.contributor.author
dc.date.accessioned
2020-07-21T06:49:36Z
dc.date.available
2022-10-28T05:46:33Z
dc.date.issued
2020-06-16
dc.identifier.issn
1932-7447
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dc.description.abstract
Transient liquid-assisted growth (TLAG) is a nonequilibrium ultrafast method to grow YBa2Cu3O7−x (YBCO) superconducting films at up to 100 nm/s using chemical solution deposition. In this work, we study the formation of non-equilibrium crystalline intermediate phases prior to the growth of YBCO through TLAG. We analyze the thermal decomposition and microstructural evolution of a propionate-based fluorine-free solution used as precursor to YBCO epitaxial films. Thermal analyses (TGA, DSC), coupled with techniques to monitor the volatiles (TG-IR), were applied in situ during film pyrolysis in humid O2, while the thermal evolution of the solid residue was characterized by infrared spectroscopy and X-ray diffraction, both ex situ and in situ in synchrotron radiation sources, and by scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS) cross-sectional analysis. Unexpected effects, observed during the decomposition of the ternary solution, are the formation of intermediate non-equilibrium phases: Cu2O or Cu(0) and monoclinic BaCO3. We emphasize that working with anhydrous solutions and anhydrous deposition conditions promotes the formation of the expected equilibrium phases. Finally, in situ X-ray diffraction permits monitoring the influence of the non-equilibrium monoclinic BaCO3 phase on the formation of binary oxide phases, precursors of TLAG YBCO film growth. Understanding the evolution of non-equilibrium phases is shown to be fundamental for the control of the final YBCO film's microstructure and performance, since the latter are strongly affected by the film's thermal history after solution deposition
dc.description.sponsorship
This work was funded by Ministerio de Ciencia, Innovación y Universidades (RTI2018-
095853-B-C21 and RTI2018-095853-B-C22) co-financed by the European Regional Development Fund, and the EU Ultrasupertape project (ERC ADG-2014-669504). We also acknowledge the Center of Excellence Severo Ochoa (SEV-2015-0496), the Generalitat de Catalunya
(2017-SGR-1519) and the COST-action NANOCOHYBRI (CA16218)
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11 p.
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application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society (ACS)
dc.relation
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095853-B-C22/ES/ANALISIS TERMICO PARA EL CRECIMIENTO DE CINTAS GRUESAS SUPERCONDUCTORAS DE REBA2CU3O7-X/
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Reproducció digital del document publicat a: https://doi.org/10.1021/acs.jpcc.0c03859
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Journal of Physical Chemistry C, 2020, vol. 124, núm. 28, p. 15574-15584
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Articles publicats (D-F)
dc.rights
Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
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dc.source
Rasi, Silvia Soler Bru, Laia Jareño, Julia Banchewski, Juri Guzman, Roger Mocuta, Cristian Kreuzer, Martin Ricart, Susagna Roura Grabulosa, Pere Farjas Silva, Jordi Obradors, Xavier Puig, Teresa 2020 Relevance of the Formation of Intermediate Non-Equilibrium Phases in YBa2Cu3O7-x Film Growth by Transient Liquid-Assisted Growth Journal of Physical Chemistry C 124 28 15574 15584
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dc.title
Relevance of the Formation of Intermediate Non-Equilibrium Phases in YBa2Cu3O7-x Film Growth by Transient Liquid-Assisted Growth
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
2021-06-16T00:00:00Z
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
031730
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
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dc.identifier.eissn
1932-7455