Microstructure and optical properties of PbTiO3 film deposited on transparent sapphire by rf sputtering

Quingchun Zhao; Zhengxiu Fan; Zhaosheng Tang; Jian-Da Shao

doi:10.1117/12.408344

29 November 2000 Low-temperature preparation of BaTiO₃ thin film by MOD and hydrothermal treatment

Quingchun Zhao; Zhengxiu Fan; Zhaosheng Tang; Jian-Da Shao

Author Affiliations +

Proceedings Volume 4086, Fourth International Conference on Thin Film Physics and Applications; (2000) https://doi.org/10.1117/12.408344
Event: 4th International Conference on Thin Film Physics and Applications, 2000, Shanghai, China

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.

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Quingchun Zhao, Quingchun Zhao, Zhengxiu Fan, Zhengxiu Fan, Zhaosheng Tang, Zhaosheng Tang, Jian-Da Shao, Jian-Da Shao, } "Low-temperature preparation of BaTiO₃ thin film by MOD and hydrothermal treatment", Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408344; https://doi.org/10.1117/12.408344

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