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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 >Structural peculiarities, and electrical and optical properties of 70TeO(2)center dot 30PbCl(2) glasses doped with Pr3+, prepared in Pt or Au crucibles
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Structural peculiarities, and electrical and optical properties of 70TeO(2)center dot 30PbCl(2) glasses doped with Pr3+, prepared in Pt or Au crucibles

机译：在Pt或Au坩埚中制备的掺有Pr3 +的70TeO（2）中心点30PbCl（2）玻璃的结构特性以及电学和光学特性

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摘要

The influence of crucibles (Au or Pt) on the structure, electrical, dielectric and optical properties of 70TeO(2)center dot 30PbCl(2) glasses doped with Pr3+ added as a metal, chloride, or oxide, in concentrations of 500-1500 wt-ppm, is reported. The dc conductivity of 'pure' glasses prepared in Au crucibles is two orders of magnitude higher than that of those prepared in Pt crucibles. Upon doping, the dc conductivity of glasses prepared in Pt and Au crucibles increases or decreases, respectively. The static relative permittivity is equal to 33 +/- 2. In the range of 640-700 nm, six photoluminescence (PL) peaks were observed, at 641.5. 647.1, 652.4, 660.8, 662.9, and 664.5 nm. In the range of 200-1200 cm(-1), seven Raman scattering (RS) peaks were observed at 184, 217, 321, 468, 654, 735 cm(-1), and a small peak at 650 cm(-1). Both spectra were deconvoluted using symmetrical Gaussian functions. Relative intensities of PL. and RS bands depend on the concentration and chemical form of Pr3+ and on the material of the crucible. However, positions of these bands are independent of these conditions.
机译：坩埚（Au或Pt）对掺杂浓度为500-1500的金属，氯化物或氧化物掺杂的Pr3 +的70TeO（2）中心点30PbCl（2）玻璃的结构，电，介电和光学性能的影响报道了wt-ppm。用金坩埚制备的“纯”玻璃的直流电导率比用铂坩埚制备的玻璃的直流电导率高两个数量级。掺杂后，在铂和金坩埚中制备的玻璃的直流电导率分别增加或降低。静态相对介电常数等于33 +/-2。在640-700 nm的范围内，观察到六个光致发光（PL）峰，为641.5。 647.1、652.4、660.8、662.9和664.5 nm。在200-1200 cm（-1）的范围内，在184、217、321、468、654、735，-1 cm处观察到七个拉曼散射（RS）峰，在650 cm（-1）处观察到一个小峰）。使用对称高斯函数对两个光谱进行去卷积。 PL的相对强度。 RS波段取决于Pr3 +的浓度和化学形式以及坩埚的材料。但是，这些频带的位置与这些条件无关。

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