Optical and crystallization behavior in Dy3+ doped 40GeSe2-25Ga2Se3-35CsI glass.
Dy(3+) doped 40GeSe(2)-25Ga(2)Se(3)-35CsI (GGC) glass was synthesized, and optical spectrum, such as infrared transmission and Vis-Nir absorption was measured. Base on the Judd-Ofelt theory, the three Judd-Ofelt parameters Omega(t) (t=2, 4, 6) were calculated and the results were compared with other chalcogenide glasses. The small Omega(2) in GGC glass is ascribed to the weak covalency of Se-Dy bond. The theory of crystallization kinetics under non-isothermal condition was developed, and was applied to analyze this Dy(3+) doped GGC glass. From the heating-rate dependence of crystallization temperature, the activation energy for crystallization E=148 kJ/mol is obtained, and this value is much smaller than that of the undoped glass host, indicating the introduction of Dy(3+) ions into the GGC glass will get the host crystallized easily.
Shen
Xiang
X
College of Information Science and Engineering, Ningbo University, Ningbo 315211, China.
Nie
Qiuhua
Q
Xu
Tiefeng
T
Dai
Shixun
S
Wang
Xunsi
X
Chen
Feifei
F
Yang
Gaobo
G
D002152:Calorimetry, Differential Scanning; D002586:Cesium / Q000737:chemistry*; D003460:Crystallization; D004419:Dysprosium / Q000737:chemistry*; D005708:Gallium / Q000737:chemistry*; D005857:Germanium / Q000737:chemistry*; D005898:Glass / Q000032:analysis / Q000737:chemistry; D007454:Iodides / Q000737:chemistry*; D008674:Metals, Rare Earth / Q000032:analysis / Q000737:chemistry; D055095:Optics and Photonics; D018036:Selenium Compounds / Q000032:analysis / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
D007454:Iodides; D008674:Metals, Rare Earth; D018036:Selenium Compounds; D005857:Germanium; D004419:Dysprosium; D002586:Cesium; D005708:Gallium; C040050:cesium iodide