Author/Authors :
Wang، نويسنده , , Ji-Wei and Chang، نويسنده , , Yu-Ming and Chang، نويسنده , , Huan-Cheng and Lin، نويسنده , , Sheng-Hsien and Huang، نويسنده , , L.-C. Lora and Kong، نويسنده , , Xiang-Lei and Kang، نويسنده , , Ming-Wei، نويسنده ,
Abstract :
Eu doped nanocrystalline Y2O3 with different sizes were prepared by combustion synthesis. Dependences of particle size, crystal status and fluorescence characteristic on ratio of glycine/Y(NO3)3 and annealing temperature were studied. It was observed that the peaks of charge transfer (CT) band do not shift with different size in low-doped concentration. With the increasing of concentration and annealing temperature, the peaks of CT band blue shift distinctly. It can be concluded that the CT band in cubic nanocrystalline Y2O3:Eu3+ has no direct connection with size, but depends on local structure, especially crystal status.
