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Proceedings Paper

Microstructure and optical properties of PbTiO3 film deposited on transparent sapphire by rf sputtering
Author(s): Quingchun Zhao; Zhengxiu Fan; Zhaosheng Tang; Jian-Da Shao
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Paper Abstract

PbTiO3 (PT) thin film with perovskite-type microstructure was synthesized directly on transparent sapphire using a rf-magnetron sputtering system with a composite target. The results show that the film is completely [111] oriented, and the lattice constant is larger than that of bulk PT material. The optical properties were calculated from the transmittance spectrum alone, and the dispersion was found to fit the single-term Sellmeier relation well. The minimum refractive index of the film is found to be 2.51, and the direct band-gap energy is estimated to be 3.65 eV from the linear fitting of the absorption coefficient to the Tauc plot of ((alpha) hv)2 vs hv.

Paper Details

Date Published: 29 November 2000
PDF: 4 pages
Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408344
Show Author Affiliations
Quingchun Zhao, Shanghai Institute of Optics and Fine Mechanics (China)
Zhengxiu Fan, Shanghai Institute of Optics and Fine Mechanics (China)
Zhaosheng Tang, Shanghai Institute of Optics and Fine Mechanics (China)
Jian-Da Shao, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 4086:
Fourth International Conference on Thin Film Physics and Applications

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