Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer

Water-soluble sacrificial layers based on epitaxially grown, single crystalline (Ca, Sr, Ba)3Al2O6 layers are widely used for creating free-standing perovskite oxide membranes. However, obtaining these sacrificial layers with intricate stoichiometry remains a challenge, especially for molecular beam...

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Detalhes bibliográficos
Autores: Varshney, Shivasheesh, Ramis, Martí, Choo, Sooho, Coll, Mariona, Jalan, Bharat
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/370587
Acesso em linha:http://hdl.handle.net/10261/370587
https://api.elsevier.com/content/abstract/scopus_id/85202684084
Access Level:acceso abierto
Palavra-chave:Molecular beam epitaxy
Solution processing
Membranes
SrTiO3
SrCa2Al2O6
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dc.title.none.fl_str_mv Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
title Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
spellingShingle Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
Varshney, Shivasheesh
Molecular beam epitaxy
Solution processing
Membranes
SrTiO3
SrCa2Al2O6
title_short Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
title_full Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
title_fullStr Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
title_full_unstemmed Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
title_sort Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layer
dc.creator.none.fl_str_mv Varshney, Shivasheesh
Ramis, Martí
Choo, Sooho
Coll, Mariona
Jalan, Bharat
author Varshney, Shivasheesh
author_facet Varshney, Shivasheesh
Ramis, Martí
Choo, Sooho
Coll, Mariona
Jalan, Bharat
author_role author
author2 Ramis, Martí
Choo, Sooho
Coll, Mariona
Jalan, Bharat
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Department of Energy (US)
University of Minnesota
Air Force Office of Scientific Research (US)
National Science Foundation (US)
Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Varshney, Shivasheesh [0000-0001-9496-0456]
Ramis, Martí [0009-0009-3617-9771]
Coll, Mariona [0000-0001-5157-7764]
0Jalan, Bharat [000-0002-7940-0490]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Molecular beam epitaxy
Solution processing
Membranes
SrTiO3
SrCa2Al2O6
topic Molecular beam epitaxy
Solution processing
Membranes
SrTiO3
SrCa2Al2O6
description Water-soluble sacrificial layers based on epitaxially grown, single crystalline (Ca, Sr, Ba)3Al2O6 layers are widely used for creating free-standing perovskite oxide membranes. However, obtaining these sacrificial layers with intricate stoichiometry remains a challenge, especially for molecular beam epitaxy (MBE). In this study, we demonstrate the hybrid MBE growth of epitaxial, single crystalline SrTiO3 films using a solution processed, amorphous SrCa2Al2O6 sacrificial layer onto SrTiO3 (001) substrates. Prior to the growth, oxygen plasma exposure was used to first create the crystalline SrCa2Al2O6 layer with well-defined surface crystallinity. Utilizing reflection high energy electron diffraction, X-ray diffraction, and atomic force microscopy, we observe an atomic layer-by-layer growth of epitaxial, single crystalline SrTiO3 films on the SrCa2Al2O6 layer with atomically smooth surfaces. The SrCa2Al2O6 layer was subsequently dissolved in deionized water to create free-standing SrTiO3 membranes that were transferred onto a metal-coated Si wafer. Membranes created with Sr-deficiency revealed ferroelectric-like behavior measured using piezo-force microscopy whereas stoichiometric films retained paraelectric-like behavior. These findings underscore the viability of using ex situ deposited amorphous SrCa2Al2O6 for epitaxial, single crystalline growth, as well as the importance of point defects in determining the ferroic properties in membranes.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/370587
https://api.elsevier.com/content/abstract/scopus_id/85202684084
url http://hdl.handle.net/10261/370587
https://api.elsevier.com/content/abstract/scopus_id/85202684084
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114224RB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de investigación Científica y Técnica y de Innovación 2017-2020/CEX2019-000917-S
Journal of Materials Chemistry C
http://doi.org/10.1039/d4tc02030h
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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repository.name.fl_str_mv
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spelling Epitaxially grown single-crystalline SrTiO3 membranes using a solution-processed, amorphous SrCa2Al2O6 sacrificial layerVarshney, ShivasheeshRamis, MartíChoo, SoohoColl, MarionaJalan, BharatMolecular beam epitaxySolution processingMembranesSrTiO3SrCa2Al2O6Water-soluble sacrificial layers based on epitaxially grown, single crystalline (Ca, Sr, Ba)3Al2O6 layers are widely used for creating free-standing perovskite oxide membranes. However, obtaining these sacrificial layers with intricate stoichiometry remains a challenge, especially for molecular beam epitaxy (MBE). In this study, we demonstrate the hybrid MBE growth of epitaxial, single crystalline SrTiO3 films using a solution processed, amorphous SrCa2Al2O6 sacrificial layer onto SrTiO3 (001) substrates. Prior to the growth, oxygen plasma exposure was used to first create the crystalline SrCa2Al2O6 layer with well-defined surface crystallinity. Utilizing reflection high energy electron diffraction, X-ray diffraction, and atomic force microscopy, we observe an atomic layer-by-layer growth of epitaxial, single crystalline SrTiO3 films on the SrCa2Al2O6 layer with atomically smooth surfaces. The SrCa2Al2O6 layer was subsequently dissolved in deionized water to create free-standing SrTiO3 membranes that were transferred onto a metal-coated Si wafer. Membranes created with Sr-deficiency revealed ferroelectric-like behavior measured using piezo-force microscopy whereas stoichiometric films retained paraelectric-like behavior. These findings underscore the viability of using ex situ deposited amorphous SrCa2Al2O6 for epitaxial, single crystalline growth, as well as the importance of point defects in determining the ferroic properties in membranes.Synthesis of membrane and characterization (S.V. and B.J.) were supported by the U.S. Department of Energy through DE-SC0020211. Device characterization (fabrication and dielectric measurements) was supported as part of the Center for Programmable Energy Catalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences at the University of Minnesota, under Award No. DE-SC0023464. S.C. acknowledges support from the Air Force Office of Scientific Research (AFOSR) through Grant Nos. FA9550-21-1-0025, FA9550-21-0460. Film growth was performed using instrumentations funded by AFOSR DURIP awards FA9550-18-1-0294 and FA9550-23-1-0085. Parts of this work were carried out at the Characterization Facility, University of Minnesota, which receives partial support from the NSF through the MRSEC program under award DMR-2011401. Exfoliation of films and device fabrication was carried out at the Minnesota Nano Center, which is supported by the NSF through the National Nano Coordinated Infrastructure under award ECCS-2025124. M.C. acknowledges funding by MICIN PID2020-114224RB-I00/AEI/10.13039/501100011033. The work of M.R. has been done in the framework of the doctorate in Materials Science of the Autonomous University of Barcelona.With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000917-S).Peer reviewedRoyal Society of Chemistry (UK)Department of Energy (US)University of MinnesotaAir Force Office of Scientific Research (US)National Science Foundation (US)Ministerio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Varshney, Shivasheesh [0000-0001-9496-0456]Ramis, Martí [0009-0009-3617-9771]Coll, Mariona [0000-0001-5157-7764]0Jalan, Bharat [000-0002-7940-0490]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/370587https://api.elsevier.com/content/abstract/scopus_id/85202684084reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114224RB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de investigación Científica y Técnica y de Innovación 2017-2020/CEX2019-000917-SJournal of Materials Chemistry Chttp://doi.org/10.1039/d4tc02030hSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3705872026-05-22T06:33:51Z
score 15,198674

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