Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16324
Title: Composition dependence of structural and optical properties of Ba(Zr x,Ti1-x)O3 thin films grown on MgO substrates by pulsed laser deposition
Authors: Xin, JZ
Leung, CW 
Chan, HLW 
Keywords: Barium zirconate titanate
Composition
Optical properties
Thin films
Issue Date: 2011
Publisher: Elsevier
Source: Thin solid films, 2011, v. 519, no. 19, p. 6313-6318 How to cite?
Journal: Thin solid films 
Abstract: Ba(Zrx,Ti1-x)O3 (BZT) films with Zr concentration ranging from 0 to 40% were grown on MgO single crystal substrates by pulsed laser deposition, and their optical properties in the visible range were systematically characterized. A linear increase in the out-of-plane lattice constant of BZT unit cell with increasing Zr content was detected by X-ray diffraction. The surface morphology was observed by atomic force microscopy and the grain size was shown to increase with Zr concentration. Prism coupling and UV-visible transmission spectroscopy techniques were used to analyze the optical properties of the films. Refractive index between 2.15 and 2.3 was observed at 633 and 1547 nm respectively, which decreased with rising Zr content. The BZT films also possessed large optical band gap energy up to 3.92 eV, which increased with rising Zr content. Quadratic electro-optic effect was observed with electro-optic coefficients between 0.11 and 0.81 × 10- 18 m2/V2, which decreased with Zr concentration. Optical loss was estimated from scattering and absorption, and the absorption coefficient dropped with increasing Zr content at near band gap. The obtained results provide information for the design of BZT thin film-based optical devices.
URI: http://hdl.handle.net/10397/16324
ISSN: 0040-6090
EISSN: 1879-2731
DOI: 10.1016/j.tsf.2011.04.007
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

11
Last Week
0
Last month
0
Citations as of Nov 9, 2017

WEB OF SCIENCETM
Citations

10
Last Week
0
Last month
1
Citations as of Nov 16, 2017

Page view(s)

50
Last Week
1
Last month
Checked on Nov 12, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.