Author/Authors :
Shu Fen Wang، نويسنده , , Feng Gu، نويسنده , , Meng Kai Lü، نويسنده , , Wen Guo Zou، نويسنده , , Su Wen Liu، نويسنده , , Dong Xu، نويسنده , , Duo Rong Yuan، نويسنده , , Guang Jun Zhou، نويسنده ,
Abstract :
The photoluminescence properties of the Bi3+ in sol-gel derived ZnTiO3 nanocrystals have been investigated. An ultra-violet emission at 360 nm and a visible emission band at 506 nm have been observed, originating from two kinds of emission centers. The former is ascribed to the 3P1–1S0 transition of Bi3+ and the latter to the recombination of the electrons with the photo-generated holes trapped in the zinc vacancies. In all cases the latter contribution is predominant.
