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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Study of thermal and optical properties of the Ge-Te-CdI _2/ZnI_2 far infrared transmitting glasses
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Study of thermal and optical properties of the Ge-Te-CdI _2/ZnI_2 far infrared transmitting glasses

机译：Ge-Te-CdI _2 / ZnI_2远红外透射玻璃的光学性能研究

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摘要

A systematic series of (100 - x)(GeTe_(4.3)) - xCdI _2/ZnI_2 far infrared transmitting glasses were prepared by traditional melt-quenching method. ZnI_2 (20 mol%) can be introduced in the glassy matrix, while only 10 mol% CdI_2 can be incorporated in the Ge-Te-CdI_2 glass system. Based on differential thermal analysis (DTA) data, most of the glass samples have good thermal stability. A maximum ΔT value of 115°C was obtained for the glass composition 90(GeTe _(4.3))-10ZnI_2. The allowed indirect transition optical band gap was calculated according to the classical Tauc equation. It is found that the indirect optical band gap decreased from 0.619 to 0.569 eV with the CdI _2 addition and increased from 0.628 to 0.677 eV with the ZnI 2 addition. According to infrared transmission spectra, the Ge-Te-CdI_2/ZnI_2 glasses show wide IR transparency.
机译：采用传统的熔融淬火法制备了系统系列的（100-x）（GeTe_（4.3））-xCdI _2 / ZnI_2远红外透射玻璃。可以在玻璃状基质中引入ZnI_2（20 mol％），而在Ge-Te-CdI_2玻璃体系中只能引入10 mol％CdI_2。根据差热分析（​​DTA）数据，大多数玻璃样品具有良好的热稳定性。对于玻璃组合物90（GeTe _（4.3））-10ZnI_2，获得了115℃的最大ΔT值。根据经典Tauc方程计算允许的间接跃迁光学带隙。发现添加CdI _2的间接光学带隙从0.619 eV降低至0.569 eV，添加ZnI 2的间接光学带隙从0.628 eV升高至0.677 eV。根据红外透射光谱，Ge-Te-CdI_2 / ZnI_2玻璃具有很宽的红外透明度。

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