The intergrowth of ferroelectric and relaxor ferroelectric phases in Bi6− <i>x</i> La <i>x</i> AlMg0.5Ti3.5O18 films achieves excellent energy storage properties
Abstract
The Bi6−xLaxAlMg0.5Ti3.5O18 films were fabricated via the combination of sol-gel and plasma technologies. The coexistence of the ferroelectric phase and the relaxor ferroelectric phase in the Bi6−xLaxAlMg0.5Ti3.5O18 films is disclosed via the intergrowth mode induced by La3+ doping. The coexistence mode of phase structures enables the simultaneous enhancement of polarization intensity and relaxor characteristics. Ultimately, the Bi4.9La1.1AlMg0.5Ti3.5O18 film exhibited ideal energy storage characteristics (66.46 J/cm3 and 86.83%) under medium-low electric fields, along with excellent stability. This offers insights into enhancing the energy storage properties of Aurivillius bismuth layer structured ferroelectric films under medium and low electric fields.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (10)
Shujun Pang
College of Science, Inner Mongolia University of Technology 1 , Hohhot 010051,
Quanlong Liu
College of Science, Inner Mongolia University of Technology 1 , Hohhot 010051,
Zhehong Tang
College of Science, Inner Mongolia University of Technology 1 , Hohhot 010051,
Yu Bai
Wen Ma
Yunpeng Zhou
Fei Guo
Xin Jia
School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology
Yanqing Guo
Jieyu Chen