Electronic and optical properties of Bi3.25La 0.75Ti3O12 and SrBi2-xNd xNb2O9 perovskite-type ferroelectric materials

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Abstract

The phase transitions and the temperature dependent electronic properties of Bi3.25La0.75Ti3O12 (BLT) film have been studied by transmittance spectra from 80 to 480 K. Anomalies of the optical constants are observed at 160 K and 300 K, which can be ascribed to the phase transitions. The optical properties of SrBi2-xNdxNb 2O9 (SBNN) ceramics with the Nd concentrations from 0 to 0.2 have been investigated by Raman scattering spectra and spectroscopic ellipsometry. It can be found that the lattice vibrations slightly depend on the Nd concentrations. Moreover, the optical band gap linearly increases with the Nd concentrations due to charge compensation by the Nd doping.

Original languageEnglish
Title of host publicationSeventh International Conference on Thin Film Physics and Applications
DOIs
StatePublished - 2011
Event7th International Conference on Thin Film Physics and Applications - Shanghai, China
Duration: 24 Sep 201027 Sep 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7995
ISSN (Print)0277-786X

Conference

Conference7th International Conference on Thin Film Physics and Applications
Country/TerritoryChina
CityShanghai
Period24/09/1027/09/10

Keywords

  • BiLa TiO film
  • Electronic structure
  • Optical properties
  • SrBiNd NbO ceramics

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