Preparation of Nanocrystallites Ln_2O_3:Eu(Ln=Gd, Y) by Combustion Synthesis and Photoluminescence
XIE Ping-Bo; ZHANG Wei-Ping; YIN Min; TAO Ye; XIA Shang-Da(Deparunent of Physics, USTC Hefei 250026 China)(Structure Research Laboratory, Chinese Academy of Sciences Hefei 230026 China)(Department of Applied Chemistry, USTC Hefei 220026 China)
The structure, TEM morphology and photoluminescence(PL) of nanocrystallites Ln2O3;Eu (Ln=Gd, Y) phosphers were studied. Samples were prepared by glycerin(G)-nitrate(N) sollltion combustion synthesis. The particle size of Ln2O3 could be controlled by different ratio of G/N.the influences of mesoscopic effect on PL of Ln2O3: Eu, such as the red shift of the excitation peak,the broading of emission peaks, were discussed.