Electronic structure, photocatalytic properties and phonon dispersions of X-doped (X = N, B and Pt) rutile TiO < inf> 2 from density functional theory
Document Type
Article
Publication Date
8-2013
Department
Department of Physics
Abstract
First principles calculations were performed on the electronic, vibrational and Raman spectra of substitutional N-, B- and Pt-doped rutile titanium dioxide (TiO2), within the density functional theory (DFT), using the plane-wave pseudopotential method. From the calculated electronic band structure and density of states we concluded that the doping induces significant changes in the band structure of TiO2, highlighting B- and Pt-doped TiO 2 as the best candidates for photocatalytic materials for visible light absorption. On the other hand, N-doped TiO2 appears to be active only for the photoreduction processes, although N doping introduces midstates into the band gap. Only N-doped TiO2 proved to have stable phonon dispersions and showed interesting band doubling.
Publication Title
Solid State Sciences
Recommended Citation
Jha, P.,
Gupta, S.,
&
Lukačević, I.
(2013).
Electronic structure, photocatalytic properties and phonon dispersions of X-doped (X = N, B and Pt) rutile TiO < inf> 2 from density functional theory.
Solid State Sciences,
22, 8-15.
http://doi.org/10.1016/j.solidstatesciences.2013.05.003
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7111