Dielectric functions and electronic band structure of lead zirconate titanate thin films

Authors :: Hosun Lee
Snyder, P.G.
Evans, J.T.
Youn Seon Kang
Su-Huai Wei
Sang-Jun Cho
Jingbo Li
Bo-Xiao
Ghil Soo Lee
Morkoc, Hadis
Tae Dong Kang
Source :: Journal of Applied Physics. Nov 1, 2005, Vol. 98 Issue 9, 094108-1-094108-10
Publication Year :: 2005
Abstract: Pseudodielectric functions in the visible-deep ultraviolet spectral range of Pb(Zr(sub x)Ti(sub 1-x))O3 (PZT), Pb0.98Nb0.04(Zr0.2Ti0.8)0.96O3, Pb0.91La0.09(Zr0.65Ti0.35)0.98O3 and Pb0.85La0.15Ti0.96O3 films grown on platinized silicon substrates using a sol-gel method and on (0001) sapphire using a radio-frequency sputtering method is measured. The near constancy of the lowest bind-gap energy independent of Zr composition is consistent with the band-structure calculations.

Subjects :: Zircon -- Structure
Zircon -- Electric properties
Zircon -- Optical properties
Dielectric films -- Structure
Dielectric films -- Electric properties
Dielectric films -- Optical properties
Thin films -- Structure
Thin films -- Electric properties
Thin films -- Optical properties
Semiconductor-metal boundaries -- Analysis
Ellipsometry -- Usage
Physics

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