Anisotropic Properties of Epitaxial Ferroelectric Lead-Free 0.5[Ba(Ti0.8Zr0.2)O3]-0.5(Ba0.7Ca0.3)TiO3 Films-Reference-Cited by-同舟云学术

Anisotropic Properties of Epitaxial Ferroelectric Lead-Free 0.5[Ba(Ti0.8Zr0.2)O3]-0.5(Ba0.7Ca0.3)TiO3 Films

Published:2023-10-13 Issue:20 Volume:16 Page:6671
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Cucciniello Nicholas¹²^ORCID,Mazza Alessandro R.²^ORCID,Roy Pinku²,Kunwar Sundar²^ORCID,Zhang Di²^ORCID,Feng Henry Y.¹,Arsky Katrina³,Chen Aiping²,Jia Quanxi¹^ORCID

Affiliation:

1. Department of Materials Design & Innovation, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA

2. Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, NM 87545, USA

3. Department of Materials Science & Engineering, University of Illinois Urbana, Urbana, IL 61801, USA

Abstract

As the energy demand is expected to double over the next 30 years, there has been a major initiative towards advancing the technology of both energy harvesting and storage for renewable energy. In this work, we explore a subset class of dielectrics for energy storage since ferroelectrics offer a unique combination of characteristics needed for energy storage devices. We investigate ferroelectric lead-free 0.5[Ba(Ti0.8Zr0.2)O3]-0.5(Ba0.7Ca0.3)TiO3 epitaxial thin films with different crystallographic orientations grown by pulsed laser deposition. We focus our attention on the influence of the crystallographic orientation on the microstructure, ferroelectric, and dielectric properties. Our results indicate an enhancement of the polarization and strong anisotropy in the dielectric response for the (001)-oriented film. The enhanced ferroelectric, energy storage, and dielectric properties of the (001)-oriented film is explained by the coexistence of orthorhombic-tetragonal phase, where the disordered local structure is in its free energy minimum.

Funder

U.S. National Science Foundation

NNSA’s Laboratory Directed Research and Development Program

U.S. Department of Energy’s NNSA

Oak Ridge Institute for Science and Education for the DOE

Publisher

MDPI AG

Subject

General Materials Science

Link

https://www.mdpi.com/1996-1944/16/20/6671/pdf

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