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Chemical environment of rare earth ions in Ge28.125Ga6.25S65.625 glass-ceramics doped with Dy3+

Wang, Rongping; Yan, Kunlun; Zhang, Mingjie; Shen, Xiang; Dai, Shixun; Yang, Xinyu; Yang, Zhiyong; Yang, Anping; Zhang, Bin; Luther-Davies, Barry


We have annealed Ge28.125Ga6.25S65.625 glasses doped with 0.5% Dy to create glass-ceramics in order to examine the local chemical environment of the rare earth ions (REI). More than 12 times enhancement of the emission at 2.9 and 3.5μm was achieved in glass-ceramics produced using prolonged annealing time. Elemental mapping showed clear evidence that Ga2S3 crystalline grains with a size of 50nm were dispersed in a Ge-S glass matrix in the glass-ceramics, and the REI could only be found near the...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4934261
Access Rights: Open Access


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