Toggle Main Menu Toggle Search

Open Access padlockePrints

Microwave synthesis of noncentrosymmetric BaTiO3 truncated nanocubes for charge storage applications

Lookup NU author(s): Dr Stevin PramanaORCiD

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

Truncated nanocubes of barium titanate (BT) were synthesized using a rapid, facile microwave-assisted hydrothermal route. Stoichiometric composition of pellets of nanocube BT powders was prepared by two-stage microwave process. Characterization by powder XRD, Rietveld refinement, SEM, TEM, and dielectric and polarization measurements was performed. X-ray diffraction revealed a polymorphic transformation from cubic Pm3̄m to tetragonal P4mm after 15 min of microwave irradiation, arising from titanium displacement along the c-axis. Secondary electron images were examined for nanocube BT synthesis and annealed at different timings. Transmission electron microscopy showed a narrow particle size distribution with an average size of 70 ± 9 nm. The remanence and saturation polarization were 15.5 ± 1.6 and 19.3 ± 1.2 μC/cm2, respectively. A charge storage density of 925 ± 47 nF/cm2 was obtained; Pt/BT/Pt multilayer ceramic capacitor stack had an average leakage current density of 5.78 ± 0.46 × 10-8 A/cm2 at ±2 V. The significance of this study shows an inexpensive and facile processing platform for synthesis of high-k dielectric for charge storage applications. © 2010 American Chemical Society.


Publication metadata

Author(s): Swaminathan V, Pramana SS, White TJ, Chen L, Chukka R, Ramanujan RV

Publication type: Article

Publication status: Published

Journal: ACS Applied Materials and Interfaces

Year: 2010

Volume: 2

Issue: 11

Pages: 3037-3042

Print publication date: 24/11/2010

Online publication date: 14/10/2010

ISSN (print): 1944-8244

ISSN (electronic): 1944-8252

Publisher: American Chemical Society

URL: https://doi.org/10.1021/am1004865

DOI: 10.1021/am1004865


Altmetrics

Altmetrics provided by Altmetric


Share