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Publications (7/7 displayed)
- 2013Effects of Sn2+ Ion Size on Sn Doped SrTiO3citations
- 2009Fabrication of well-dispersed barium titanate nanoparticles by the electrospray of a colloidal solutioncitations
- 2008Ferroelectric 90° domain structure in a thin film of BaTiO3 fine ceramics observed by 300kV electron holographycitations
- 2008Fabrication of Monodispersed Barium Titanate Nanoparticles with Narrow Size Distributioncitations
- 2006Dielectric Properties of BaTiO<sub>3</sub> Thin Films Prepared by Laser Ablationcitations
- 2005Optical Band Gap of Barium Titanate Nanoparticles Prepared by RF-plasma Chemical Vapor Depositioncitations
- 2005High Energy-Resolution Electron Energy-Loss Spectroscopy Study of Electronic Structures of Barium Titanate Nanocrystalscitations
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article
Optical Band Gap of Barium Titanate Nanoparticles Prepared by RF-plasma Chemical Vapor Deposition
Abstract
<jats:p>The size dependence of the band gap for barium titanate nanoparticles prepared by RF-plasma chemical vapor deposition was investigated by measuring the diffuse reflectance spectra. The band gap of the indirect transition gradually increased, as the particle sizes decreased to less than 11.5 nm. Consequently, the band gap for particles of 6.7 nm in size was measured to be 3.47 eV, which was approximately 0.25 eV larger than that of BaTiO<jats:sub>3</jats:sub> bulk. This phenomenon was discussed on the basis of quantum confinement model.</jats:p>