The enhanced electrical energy storage properties of (Bi0.5Na0.5)TiO3–BaTiO3/graphene oxide heterogeneous structures

Zhuo Han, Tian Li, Guangping Zheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review


Heterogeneous structures of lead-free 0.94(Bi0.5Na0.5)TiO3–0.06BaTiO3 solid-solution thin film and few-layer graphene oxide (GO) are prepared by using Langmuir–Blodgett (L–B) method, and their morphology, piezoelectric properties and electrical energy storage performances are investigated. It is found that the electrical breakdown strength of solid-solution thin film is significantly improved due to the covalently bonded GO nanosheets, resulting in the present of local fields that could be counteractive to the applied electric field. The heterostructures possess an outstanding electrical energy storage density as high as 4.26 J cm−3 at elevated temperatures (80–120 °C). The results demonstrate that the development of dielectrics-GO heterostructures is an effective approach in enhancing the energy storage density of dielectric capacitors for their practical applications.

Original languageEnglish
Article number147
JournalJournal of Materials Science: Materials in Electronics
Issue number2
Publication statusPublished - Jan 2023

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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