Effects of host glasses on luminescence properties of Sm3+, Pr3+ co-doped glass

6th International Conference on Optical, Optoelectronic and Photonic Materials and Applications 2014

Shimizu, Y.^1 ; Watanabe, K.^1 ; Uemura, H.^2 ; Fuchi, S.^1 ; Takeda, Y.^2

Aoyama Gakuin Univ, Fuchinobe, 5-10-1, Chuo-ku, Sagamihara-shi, Kanagawa

252-5258, Japan^1

Aichi Science and Technology Foundation, 250-3 Yamaguchi-cho, Seto-shi, Aichi

489-0965, Japan^2

关键词: Co-doped glass;    Doped glass;    Glass former;    Luminescence properties;    Luminescence spectrum;    Number density;    Output power;    Rare earth ions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/619/1/012048/pdf
DOI  :  10.1088/1742-6596/619/1/012048

来源: IOP

【 摘 要 】

We calculated "density"/"molecular weight" ratio of glass former oxides and modifier oxides to increase a number density of rare-earth ions in glass phosphor. Based on the calculated results, GeO2and ZnO were chosen for the glass former oxide and the modifier oxide, respectively. The effects of substituting GeO2for B2O3, ZnO for Sb2O3, or ZnO for Bi2O3on luminescence spectra in Sm3+-doped glass were not observed. On the other hand, a drastically luminescence spectrum changing of Pr3+-doped glass was observed by substituting GeO2for B2O3. The output power of Sm3+-doped glass and that of Pr3+-doped glass increased with substituting ZnO for Bi2O3. We successfully achieved an ultra-wideband luminescence from 760 nm to 1100 nm with the output power of 2.5 mW by combining a blue LED with 0.15Sm2O3-0.12Pr6O11-10ZnO-45Sb2O3-45GeO2glass in one package.