Optical and electrical properties of sol-gel derived BaTiO3 films on ITO coated glass

H. X. Zhang; C. H. Kam; Y. Zhou; X. Q. Han; Y. L. Lam; Y. C. Chan; K. Pita

doi:10.1016/S0254-0584(99)00222-9

Optical and electrical properties of sol-gel derived BaTiO₃ films on ITO coated glass

H. X. Zhang^*, C. H. Kam, Y. Zhou, X. Q. Han, Y. L. Lam, Y. C. Chan, K. Pita

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

Abstract

BaTiO₃ films have been deposited on ITO coated glass by sol-gel method using barium acetate and titanium butoxide as starting materials. The optical properties were studied by UV-VIS-NIR spectroscopy and the results indicated that the films had high transparency in the visible spectral zone. From the UV-VIS absorption data, the band gaps of the films were determined to be in the range of 3.72-3.77 eV, depending on the annealing temperature and time. Electrical measurements revealed that dielectric constants of the films increased with the increase of annealing time and temperature and reached a value of 180, but the breakdown voltage decreased from 100×10⁶ to 12.5×10⁶ V m^-1 at the same time.

Original language	English
Pages (from-to)	174-177
Number of pages	4
Journal	Materials Chemistry and Physics
Volume	63
Issue number	2
DOIs	https://doi.org/10.1016/S0254-0584(99)00222-9
Publication status	Published - Feb 28 2000
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics

Access to Document

10.1016/S0254-0584(99)00222-9

Cite this

@article{0775bae86ba942f6992334cb264f0d6f,

title = "Optical and electrical properties of sol-gel derived BaTiO3 films on ITO coated glass",

abstract = "BaTiO3 films have been deposited on ITO coated glass by sol-gel method using barium acetate and titanium butoxide as starting materials. The optical properties were studied by UV-VIS-NIR spectroscopy and the results indicated that the films had high transparency in the visible spectral zone. From the UV-VIS absorption data, the band gaps of the films were determined to be in the range of 3.72-3.77 eV, depending on the annealing temperature and time. Electrical measurements revealed that dielectric constants of the films increased with the increase of annealing time and temperature and reached a value of 180, but the breakdown voltage decreased from 100×106 to 12.5×106 V m-1 at the same time.",

author = "Zhang, {H. X.} and Kam, {C. H.} and Y. Zhou and Han, {X. Q.} and Lam, {Y. L.} and Chan, {Y. C.} and K. Pita",

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T1 - Optical and electrical properties of sol-gel derived BaTiO3 films on ITO coated glass

AU - Zhang, H. X.

AU - Kam, C. H.

AU - Zhou, Y.

AU - Han, X. Q.

AU - Lam, Y. L.

AU - Chan, Y. C.

AU - Pita, K.

PY - 2000/2/28

Y1 - 2000/2/28

N2 - BaTiO3 films have been deposited on ITO coated glass by sol-gel method using barium acetate and titanium butoxide as starting materials. The optical properties were studied by UV-VIS-NIR spectroscopy and the results indicated that the films had high transparency in the visible spectral zone. From the UV-VIS absorption data, the band gaps of the films were determined to be in the range of 3.72-3.77 eV, depending on the annealing temperature and time. Electrical measurements revealed that dielectric constants of the films increased with the increase of annealing time and temperature and reached a value of 180, but the breakdown voltage decreased from 100×106 to 12.5×106 V m-1 at the same time.

AB - BaTiO3 films have been deposited on ITO coated glass by sol-gel method using barium acetate and titanium butoxide as starting materials. The optical properties were studied by UV-VIS-NIR spectroscopy and the results indicated that the films had high transparency in the visible spectral zone. From the UV-VIS absorption data, the band gaps of the films were determined to be in the range of 3.72-3.77 eV, depending on the annealing temperature and time. Electrical measurements revealed that dielectric constants of the films increased with the increase of annealing time and temperature and reached a value of 180, but the breakdown voltage decreased from 100×106 to 12.5×106 V m-1 at the same time.

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