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Publication
Title
Stabilizing perovskite thin films by fast deposition and tensile mismatched growth template
Author
Abstract
Because of its low hysteresis, high dielectric constant, and strong piezoelectric response, Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) thin films have attracted considerable attention for the application in PiezoMEMS, field-effect transistors, and energy harvesting and storage devices. However, it remains a great challenge to fabricate phase-pure, pyrochlore-free PMN-PT thin films. In this study, we demonstrate that a high deposition rate, combined with a tensile mismatched template layer can stabilize the perovskite phase of PMN-PT films and prevent the nucleation of passive pyrochlore phases. We observed that an accelerated deposition rate promoted mixing of the B-site cation and facilitated relaxation of the compressively strained PMN-PT on the SrTiO3 (STO) substrate in the initial growth layer, which apparently suppressed the initial formation of pyrochlore phases. By employing La-doped-BaSnO3 (LBSO) as the tensile mismatched buffer layer, 750 nm thick phase-pure perovskite PMN-PT films were synthesized. The resulting PMN-PT films exhibited excellent crystalline quality close to that of the STO substrate.
Language
English
Source (journal)
ACS applied materials and interfaces. - -
Publication
2024
ISSN
1944-8244
DOI
10.1021/ACSAMI.3C16241
Volume/pages
16 :10 (2024) , p. 12744-12753
ISI
001176343700001
Pubmed ID
38420766
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Enabling science and technology through European electron microscopy (ESTEEM3).
Smart strategies to break the beam damage limits in transmission electron microscopy.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier c:irua:204754
Creation 29.03.2024
Last edited 28.02.2025
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