Band gap narrowing versus formation of electronic states in the gap in N-TiO2 thin films

1. Romero-Gómez, P.
2. Hamad, S.
3. González, J.C.
4. Barranco, A.
5. Espinós, J.P.
6. Cotrino, J.
7. González-Elipe, A.R.