Glass formation and properties of GeTe4-Ga2Te3-AgX (X=I/Br/Cl) far infrared transmitting chalcohalide glasses

Glass formation and properties of GeTe4-Ga2Te3-AgX (X=I/Br/Cl) far infrared transmitting chalcohalide glasses
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GeTe4-Ga2Te3-AgX(X=I/Br/Cl)远红外透射卤化物玻璃的玻璃形成及性能

DOI:
10.1016/j.optcom.2010.06.011
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发表时间:
2010-10
影响因子:
2.4
通讯作者:
徐铁峰
徐铁峰
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
徐铁峰

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本文研究了一种新的碲基玻璃GeTe_4-Ga_2 Te_3-AgX(X=I/Br/Cl),并确定了玻璃形成区。性能测试包括XRD,DTA,vis-NIR和IR透射光谱。用X射线衍射证实了玻璃的非晶态性质。其中GeTe_4-Ga_2 Te_3-AgI系统玻璃具有较好的上级玻璃形成能力和热稳定性。对于60 GeTe 4 -2- 20 Ga 2 Te 3 - 20 AgI玻璃组合物,ΔT(=Tx-Tg)的最大值位于约110°C处,而对于60 GeTe 4 - 20 Ga 2 Te 3 - 20 AgBr和60 GeTe 4 - 20 Ga 2 Te 3 - 20 AgCl,ΔT值均仅为88°C。所研究的大多数玻璃具有1.8 - 25μm的宽光学透射窗口。
A new family of Tellurium-based glasses GeTe4–Ga2Te3–AgX (X=I/Br/Cl) has been investigated and the glass-forming region was determined. Properties measurements include XRD, DTA, vis-NIR, and IR transmission spectra. The amorphous nature of the glasses has been proved by X-ray diffraction. Among the three systems, the GeTe4–Ga2Te3–AgI glass system shows superior glass-forming ability and thermal stability. The maximum value of ΔT (=Tx−Tg) lies at about 110°C for the glass composition 60GeTe4–2-20Ga2Te3–20AgI, while for 60GeTe4–20Ga2Te3–20AgBr and 60GeTe4–20Ga2Te3–20AgCl, the ΔT values are both only 88°C. Most of the studied glasses have a wide optical transmission window from 1.8 to 25μm.
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