Large energy storage density performance of epitaxial BCT/BZT heterostructures via interface engineering.
Sci Rep
; 9(1): 16809, 2019 Nov 14.
Article
en En
| MEDLINE
| ID: mdl-31728005
ABSTRACT
We grew lead-free BaZr0.2Ti0.8O3 (BZT)/Ba0.7Ca0.3TiO3 (BCT) epitaxial heterostructures and studied their structural, dielectric, ferroelectric and energy density characteristics. The BZT/BCT epitaxial heterostructures were grown on SrRuO3 (SRO) buffered SrTiO3 (STO) single crystal substrate by optimized pulsed laser deposition (PLD) technique. These high-quality nanostructures exhibit high dielectric permittivity (â¼1300), slim electric field-dependent polarization (P-E) curve with high saturation polarization (â¼100 µC/cm2) and low remnant polarization (â¼20 µC/cm2) through interface engineering to develop new lead-free ferroelectric system for energy storage devices. We observe an ultrahigh discharge and charge energy densities of 42.10 and 97.13 J/cm3, respectively, with high efficiency, which might be highly promising for both high power and energy storage electrical devices.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Sci Rep
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos