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Issue 15, 2010
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Second-order optical nonlinearity and ionic conductivity of nanocrystalline GeS2–Ga2S3LiI glass-ceramics with improved thermo-mechanical properties

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Abstract

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 °C 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 °C 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.

Graphical abstract: Second-order optical nonlinearity and ionic conductivity of nanocrystalline GeS2–Ga2S3–LiI glass-ceramics with improved thermo-mechanical properties

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Publication details

The article was received on 20 Oct 2009, accepted on 28 Jan 2010 and first published on 23 Feb 2010


Article type: Paper
DOI: 10.1039/B921909A
Citation: Phys. Chem. Chem. Phys., 2010,12, 3780-3787
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    Second-order optical nonlinearity and ionic conductivity of nanocrystalline GeS2–Ga2S3LiI glass-ceramics with improved thermo-mechanical properties

    C. Lin, L. Calvez, B. Bureau, H. Tao, M. Allix, Z. Hao, V. Seznec, X. Zhang and X. Zhao, Phys. Chem. Chem. Phys., 2010, 12, 3780
    DOI: 10.1039/B921909A

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