Calculation of Optical Parameters and Investigation of Luminescence Spectra of Dy^(3+) Doped Boroaluminasilicate Glasses  

作　　者：陆春华 张焱 倪亚茹 谭伟民 许仲梓 

机构地区：[1]College of Materials Science &Technology, Nanjing University of Technology

出　　处：《Journal of Rare Earths》2007年第S1期334-337,共4页稀土学报（英文版）

基　　金：Trans-Century Training Programme Foundation for the Talents by the Ministry of Education;NaturalScience Fund of Jiangsu Province (BK2004121);the Innovation Foundation for Graduate Students of Jiangsu Province

摘　　要：Sm3+∶SiO_2 thin film with high concentration of Sm3+ was prepared by sol-gel method using tetraethoxysilane(TEOS) as precursor and using the appropriate system of hydrolyzing-condensing and organic additives, and controlling the velocity of promoting temperature during the heat treatment. Research was done on the luminescence spectra of the gel with different concentrations of Sm3+ by fluorescence spectra analysis. The results showed that, the emission intensity of Sm3+ became stronger with increasing the doping concentration when the concentration was below 10% in the gel; the optimum excitation wavelength of Sm3+ in the gel was 473 nm, the emission peak position were at 561, 594, 643, 703 nm, which was caused from, respectively, 4G5/2-6H5/2, 4G5/2-6H7/2, 4G5/2-6H9/2, 4G5/2-6H11/2 transition of Sm3+; and the emission intensity of the gel with organic additive DMF was elevated evidently.Sm3+∶SiO_2 thin film with high concentration of Sm3+ was prepared by sol-gel method using tetraethoxysilane(TEOS) as precursor and using the appropriate system of hydrolyzing-condensing and organic additives, and controlling the velocity of promoting temperature during the heat treatment. Research was done on the luminescence spectra of the gel with different concentrations of Sm3+ by fluorescence spectra analysis. The results showed that, the emission intensity of Sm3+ became stronger with increasing the doping concentration when the concentration was below 10% in the gel; the optimum excitation wavelength of Sm3+ in the gel was 473 nm, the emission peak position were at 561, 594, 643, 703 nm, which was caused from, respectively, 4G5/2-6H5/2, 4G5/2-6H7/2, 4G5/2-6H9/2, 4G5/2-6H11/2 transition of Sm3+; and the emission intensity of the gel with organic additive DMF was elevated evidently.

关 键 词：Sm^(3+)∶SiO_2 thin film sol-gel method luminescence properties rare earths 

分 类 号：TQ171.1[化学工程—玻璃工业]