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Concentration-dependent and enhanced luminescence in Ge 23.5 Ga 11.5 Se 65 glasses and glass-ceramics doped with Er 3 +

Li, Zhikai; Shen, Xiang; Wang, Guoxiang; Wang, Rongping; Dai, Shixun; Xu, Tiefeng; Nie, Qiuhua


We have reported the fabrication and characterization of Ge23.5Ga11.5Se65 glasses and glass-ceramics with different Er3+ concentrations. It was found that, the emission properties of the bulk glasses showed the fluorescence intensity and lifetime increased until they reached a maximum, and then decreased with increasing Er3+ concentration. This is due to concentration quenching effect although the maximum dissolving concentration of Er3+ can be up to ∼1 wt% of Er. A careful thermal process has...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Optical Materials
DOI: 10.1016/j.optmat.2016.11.032


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