Cr-N codoping approach is studied using both cluster-assembled and epitaxial TiO2 films. simultaneously injecting the two atomic species substantially modifies the TiO2 band gap, reducing it by more than 1 eV. XPS, XAS and optical spectroscopy characterizations confirm that the atoms are succesfully embedded inside the system and that the band gap is reduced. Cr-N coupling is confirmed in the case of epitaxial codoped Titania films.
GROWTH AND CHARACTERIZATION OF EPITAXIAL AND CLUSTER-ASSEMBLED CR-N CODOPED TIO2 FILMS WITH ENHANCED VISIBLE-LIGHT PHOTOACTIVITY
CHIODI, MIRCO
2010
Abstract
Cr-N codoping approach is studied using both cluster-assembled and epitaxial TiO2 films. simultaneously injecting the two atomic species substantially modifies the TiO2 band gap, reducing it by more than 1 eV. XPS, XAS and optical spectroscopy characterizations confirm that the atoms are succesfully embedded inside the system and that the band gap is reduced. Cr-N coupling is confirmed in the case of epitaxial codoped Titania films.File in questo prodotto:
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Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/20.500.14242/113619
Il codice NBN di questa tesi è
URN:NBN:IT:UNIMI-113619