A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water

Abstract In the growing field of low‐cost electronics, the epitaxy of complex oxide thin films on a Si substrate requires significant technical means. Therefore, a large attention is paid to the release of a freestanding oxide of interest from its deposition support which is then placed onto a low‐c...

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Main Authors: Vincent Polewczyk, Bruno Bérini, Aïmane Cheikh, Deepak Dagur, Moussa Mezhoud, Oualyd El‐Khaloufi, Moussa Mebarki, Luca Braglia, Simon Hurand, Arnaud Fouchet, Giovanni Vinai, Piero Torelli, Adrian David, Yves Dumont, Ulrike Lüders
Format: Article
Language:English
Published: Wiley-VCH 2025-06-01
Series:Advanced Materials Interfaces
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Online Access:https://doi.org/10.1002/admi.202500094
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author Vincent Polewczyk
Bruno Bérini
Aïmane Cheikh
Deepak Dagur
Moussa Mezhoud
Oualyd El‐Khaloufi
Moussa Mebarki
Luca Braglia
Simon Hurand
Arnaud Fouchet
Giovanni Vinai
Piero Torelli
Adrian David
Yves Dumont
Ulrike Lüders
author_facet Vincent Polewczyk
Bruno Bérini
Aïmane Cheikh
Deepak Dagur
Moussa Mezhoud
Oualyd El‐Khaloufi
Moussa Mebarki
Luca Braglia
Simon Hurand
Arnaud Fouchet
Giovanni Vinai
Piero Torelli
Adrian David
Yves Dumont
Ulrike Lüders
author_sort Vincent Polewczyk
collection DOAJ
description Abstract In the growing field of low‐cost electronics, the epitaxy of complex oxide thin films on a Si substrate requires significant technical means. Therefore, a large attention is paid to the release of a freestanding oxide of interest from its deposition support which is then placed onto a low‐cost substrate, via the etching of an intermediate sacrificial layer. The use of a sacrificial layer offers several advantages since the flexible polymer exploited for the transfer can also be fully utilized to design a flexible heterostructure. For green technology, more and more research investigations are being undertaken on these sacrificial layers etched by water. While Sr3Al2O6 and SrVO3 are archetypical examples, the need to find new materials with different lattice parameters and symmetry is critical to reach the epitaxy of numerous materials of interest. In this study, the possibilities of an A‐site cationic variation in AVO3 with A = Sr and/or Ca thin films are highlighted to expand the water‐soluble material's family reaching the smallest lattice parameter ever presented up to now. In addition to bring various compounds with different ageing properties to the literature, optical spectrophotometry operando characterizations to follow the chemical etching of the sacrificial layers in real‐time are exploited.
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spelling doaj-art-2baf37f55212448c84bae86358aee6692025-08-20T03:27:51ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-06-011212n/an/a10.1002/admi.202500094A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in WaterVincent Polewczyk0Bruno Bérini1Aïmane Cheikh2Deepak Dagur3Moussa Mezhoud4Oualyd El‐Khaloufi5Moussa Mebarki6Luca Braglia7Simon Hurand8Arnaud Fouchet9Giovanni Vinai10Piero Torelli11Adrian David12Yves Dumont13Ulrike Lüders14UVSQ, CNRS, GEMaC Université Paris‐Saclay Versailles 78000 FranceUVSQ, CNRS, GEMaC Université Paris‐Saclay Versailles 78000 FranceUniversité de Caen Normandie, ENSICAEN, CNRS UMR 6508, CRISMAT Normandie Univ Caen 14000 FranceCNR – Istituto Officina dei Materiali (IOM) Area Science Park, S.S.14, km 163.5 Trieste I‐34149 ItalyUniversité de Caen Normandie, ENSICAEN, CNRS UMR 6508, CRISMAT Normandie Univ Caen 14000 FranceUniversité de Caen Normandie, ENSICAEN, CNRS UMR 6508, CRISMAT Normandie Univ Caen 14000 FranceUVSQ, CNRS, GEMaC Université Paris‐Saclay Versailles 78000 FranceCNR – Istituto Officina dei Materiali (IOM) Area Science Park, S.S.14, km 163.5 Trieste I‐34149 ItalyInstitut Pprime CNRS – Université de Poitiers – ENSMA 11 Bd Marie et Pierre Curie Chasseneuil‐du‐Poitou 86360 FranceUniversité de Caen Normandie, ENSICAEN, CNRS UMR 6508, CRISMAT Normandie Univ Caen 14000 FranceCNR – Istituto Officina dei Materiali (IOM) Area Science Park, S.S.14, km 163.5 Trieste I‐34149 ItalyCNR – Istituto Officina dei Materiali (IOM) Area Science Park, S.S.14, km 163.5 Trieste I‐34149 ItalyUniversité de Caen Normandie, ENSICAEN, CNRS UMR 6508, CRISMAT Normandie Univ Caen 14000 FranceUVSQ, CNRS, GEMaC Université Paris‐Saclay Versailles 78000 FranceUniversité de Caen Normandie, ENSICAEN, CNRS UMR 6508, CRISMAT Normandie Univ Caen 14000 FranceAbstract In the growing field of low‐cost electronics, the epitaxy of complex oxide thin films on a Si substrate requires significant technical means. Therefore, a large attention is paid to the release of a freestanding oxide of interest from its deposition support which is then placed onto a low‐cost substrate, via the etching of an intermediate sacrificial layer. The use of a sacrificial layer offers several advantages since the flexible polymer exploited for the transfer can also be fully utilized to design a flexible heterostructure. For green technology, more and more research investigations are being undertaken on these sacrificial layers etched by water. While Sr3Al2O6 and SrVO3 are archetypical examples, the need to find new materials with different lattice parameters and symmetry is critical to reach the epitaxy of numerous materials of interest. In this study, the possibilities of an A‐site cationic variation in AVO3 with A = Sr and/or Ca thin films are highlighted to expand the water‐soluble material's family reaching the smallest lattice parameter ever presented up to now. In addition to bring various compounds with different ageing properties to the literature, optical spectrophotometry operando characterizations to follow the chemical etching of the sacrificial layers in real‐time are exploited.https://doi.org/10.1002/admi.202500094flexible electronicslow‐cost electronicssacrificial layerthin filmwater etching
spellingShingle Vincent Polewczyk
Bruno Bérini
Aïmane Cheikh
Deepak Dagur
Moussa Mezhoud
Oualyd El‐Khaloufi
Moussa Mebarki
Luca Braglia
Simon Hurand
Arnaud Fouchet
Giovanni Vinai
Piero Torelli
Adrian David
Yves Dumont
Ulrike Lüders
A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water
Advanced Materials Interfaces
flexible electronics
low‐cost electronics
sacrificial layer
thin film
water etching
title A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water
title_full A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water
title_fullStr A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water
title_full_unstemmed A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water
title_short A‐Site Cationic Variation to Expand the Sacrificial Layer AVO3 Family Dissolving in Water
title_sort a site cationic variation to expand the sacrificial layer avo3 family dissolving in water
topic flexible electronics
low‐cost electronics
sacrificial layer
thin film
water etching
url https://doi.org/10.1002/admi.202500094
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