Rsc_cp_b921909a 3780..3787
نویسندگان
چکیده
IR-transparent chalcogenide glass-ceramics were fabricated through a careful ceramization process of the as-prepared 65GeS2 25Ga2S3 10LiI glasses at a temperature of 403 1C for various durations. Owing to the precipitation of LixGaySz crystals with a Ga2S3-like structure, clear second-harmonic generation was observed in the sample crystallized at 403 1C for 60 h, which has a greatly improved resistance to environmental impairment. Additionally, it is found that the shorter crystallization process (%60 h) contributed to the enhancement of Li ionic conductivity, whereas a longer heat-treatment (80 h) would impair that of the glass-ceramics. The micro-structural origin of these varied properties was elucidated in detail. The corresponding results will be of benefit for the optimization of designed transparent chalcogenide glass-ceramics with improved thermo-mechanical properties, a permanent second-order optical nonlinearity, or a well-enhanced ionic conductivity for application in amorphous solid electrolytes.
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