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Bendable Polycrystalline and Magnetic CoFe(2)O(4) Membranes by Chemical Methods
[Image: see text] The preparation and manipulation of crystalline yet bendable functional complex oxide membranes has been a long-standing issue for a myriad of applications, in particular, for flexible electronics. Here, we investigate the viability to prepare magnetic and crystalline CoFe(2)O(4) (...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8931725/ https://www.ncbi.nlm.nih.gov/pubmed/35232015 http://dx.doi.org/10.1021/acsami.1c24450 |
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author | Salles, Pol Guzmán, Roger Zanders, David Quintana, Alberto Fina, Ignasi Sánchez, Florencio Zhou, Wu Devi, Anjana Coll, Mariona |
author_facet | Salles, Pol Guzmán, Roger Zanders, David Quintana, Alberto Fina, Ignasi Sánchez, Florencio Zhou, Wu Devi, Anjana Coll, Mariona |
author_sort | Salles, Pol |
collection | PubMed |
description | [Image: see text] The preparation and manipulation of crystalline yet bendable functional complex oxide membranes has been a long-standing issue for a myriad of applications, in particular, for flexible electronics. Here, we investigate the viability to prepare magnetic and crystalline CoFe(2)O(4) (CFO) membranes by means of the Sr(3)Al(2)O(6) (SAO) sacrificial layer approach using chemical deposition techniques. Meticulous chemical and structural study of the SAO surface and SAO/CFO interface properties have allowed us to identify the formation of an amorphous SAO capping layer and carbonates upon air exposure, which dictate the crystalline quality of the subsequent CFO film growth. Vacuum annealing at 800 °C of SAO films promotes the elimination of the surface carbonates and the reconstruction of the SAO surface crystallinity. Ex-situ atomic layer deposition of CFO films at 250 °C on air-exposed SAO offers the opportunity to avoid high-temperature growth while achieving polycrystalline CFO films that can be successfully transferred to a polymer support preserving the magnetic properties under bending. Float on and transfer provides an alternative route to prepare freestanding and wrinkle-free CFO membrane films. The advances and challenges presented in this work are expected to help increase the capabilities to grow different oxide compositions and heterostructures of freestanding films and their range of functional properties. |
format | Online Article Text |
id | pubmed-8931725 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-89317252022-03-18 Bendable Polycrystalline and Magnetic CoFe(2)O(4) Membranes by Chemical Methods Salles, Pol Guzmán, Roger Zanders, David Quintana, Alberto Fina, Ignasi Sánchez, Florencio Zhou, Wu Devi, Anjana Coll, Mariona ACS Appl Mater Interfaces [Image: see text] The preparation and manipulation of crystalline yet bendable functional complex oxide membranes has been a long-standing issue for a myriad of applications, in particular, for flexible electronics. Here, we investigate the viability to prepare magnetic and crystalline CoFe(2)O(4) (CFO) membranes by means of the Sr(3)Al(2)O(6) (SAO) sacrificial layer approach using chemical deposition techniques. Meticulous chemical and structural study of the SAO surface and SAO/CFO interface properties have allowed us to identify the formation of an amorphous SAO capping layer and carbonates upon air exposure, which dictate the crystalline quality of the subsequent CFO film growth. Vacuum annealing at 800 °C of SAO films promotes the elimination of the surface carbonates and the reconstruction of the SAO surface crystallinity. Ex-situ atomic layer deposition of CFO films at 250 °C on air-exposed SAO offers the opportunity to avoid high-temperature growth while achieving polycrystalline CFO films that can be successfully transferred to a polymer support preserving the magnetic properties under bending. Float on and transfer provides an alternative route to prepare freestanding and wrinkle-free CFO membrane films. The advances and challenges presented in this work are expected to help increase the capabilities to grow different oxide compositions and heterostructures of freestanding films and their range of functional properties. American Chemical Society 2022-03-01 2022-03-16 /pmc/articles/PMC8931725/ /pubmed/35232015 http://dx.doi.org/10.1021/acsami.1c24450 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Salles, Pol Guzmán, Roger Zanders, David Quintana, Alberto Fina, Ignasi Sánchez, Florencio Zhou, Wu Devi, Anjana Coll, Mariona Bendable Polycrystalline and Magnetic CoFe(2)O(4) Membranes by Chemical Methods |
title | Bendable
Polycrystalline and Magnetic CoFe(2)O(4) Membranes
by Chemical Methods |
title_full | Bendable
Polycrystalline and Magnetic CoFe(2)O(4) Membranes
by Chemical Methods |
title_fullStr | Bendable
Polycrystalline and Magnetic CoFe(2)O(4) Membranes
by Chemical Methods |
title_full_unstemmed | Bendable
Polycrystalline and Magnetic CoFe(2)O(4) Membranes
by Chemical Methods |
title_short | Bendable
Polycrystalline and Magnetic CoFe(2)O(4) Membranes
by Chemical Methods |
title_sort | bendable
polycrystalline and magnetic cofe(2)o(4) membranes
by chemical methods |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8931725/ https://www.ncbi.nlm.nih.gov/pubmed/35232015 http://dx.doi.org/10.1021/acsami.1c24450 |
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