TY - JOUR
T1 - Influence of doping on chain-like TiO2 clusters
T2 - A DFT study
AU - Salazar-Villanueva, M.
AU - Bautista Hernandez, A.
AU - Quijano Briones, J. J.
AU - Chigo Anota, E.
AU - Severiano Carrillo, F.
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - DFT calculations were carried out to determine the electronic and structural properties of titanium dioxide clusters either pristine or doped. In this work, a maximum size of approximately 1.5 nm for the three cases was considered. There are no drastic changes concerning the geometry for larger clusters; however there is an important reduction of electronic gap for doped clusters compared to pristine ones in all range considered. The pristine clusters enhance the visible-light photocatalytic activity, whereas those of systems doped with one nitrogen and carbon atom exhibit a spectral shift in the near-infra-red region due to the introduction of additional electronic states originating from the N and C 2p orbitals in the band gap.
AB - DFT calculations were carried out to determine the electronic and structural properties of titanium dioxide clusters either pristine or doped. In this work, a maximum size of approximately 1.5 nm for the three cases was considered. There are no drastic changes concerning the geometry for larger clusters; however there is an important reduction of electronic gap for doped clusters compared to pristine ones in all range considered. The pristine clusters enhance the visible-light photocatalytic activity, whereas those of systems doped with one nitrogen and carbon atom exhibit a spectral shift in the near-infra-red region due to the introduction of additional electronic states originating from the N and C 2p orbitals in the band gap.
KW - Density-functional theory
KW - Electronic structure and bonding characteristics
KW - Interatomic distances and angles
UR - http://www.scopus.com/inward/record.url?scp=84949517711&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2015.11.018
DO - 10.1016/j.cap.2015.11.018
M3 - Artículo
AN - SCOPUS:84949517711
SN - 1567-1739
VL - 16
SP - 197
EP - 206
JO - Current Applied Physics
JF - Current Applied Physics
IS - 2
ER -