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| Upconversion Spectroscopic Properties of Na+ (K+)/Er Codoped 50SiO2–30PbO–20PbF2–0.80ErF3 Glasses and Glass Ceramics |
| QIU Xiannian1,2, REN Guozhong1,2, LIN Lejing1,2, CHEN Minpeng1,2, YANG Qibin1,2 |
1.Faculty of Materials, Institute of Modern Physics, Xiangtan University, Xiangtan 411105
2.Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105 |
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Cite this article:
QIU Xiannian REN Guozhong LIN Lejing CHEN Minpeng YANG Qibin. Upconversion Spectroscopic Properties of Na+ (K+)/Er Codoped 50SiO2–30PbO–20PbF2–0.80ErF3 Glasses and Glass Ceramics. Chin J Mater Res, 2011, 25(5): 545-549.
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Abstract The upconversion spectroscopic properties of Na+(K+)/Er codoped 50SiO2–30PbO–20PbF2–0.80ErF3 glasses and glass ceramics were studied. Three major glasses were prepared by sintering method according to the following molar composition: 50SiO2–30PbO–20PbF2–0.8ErF3 (EG), 50SiO2–30PbO–20PbF2–0.5KO1/2–0.8ErF3 (KG), 50SiO2–30PbO–20PbF2–0.5NaF–0.8ErF3 (NaG). Er3+: β–PbF2 nano–crystallites grew in whole glasses, after heating treatment at the temperature 30oC higher than Tg. However, there existed small amount of Er3+ : β–PbF2 nano–crystallite in the NaG even before heating treatment. J–O parameters, Ω2, Ω4, Ω6, were calculated from absorption spectrum according to J–O theory. The glass ceramics emitted more intensive red, green and blue upconersion luminescence than that of the glasses under exitation of 980 nm laser diode.
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Received: 20 June 2011
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