Phase Equilibria in the Tl2Te-SiTe2 and Tl2SiTe3-Сd(Hg)Te Systems

被引：0
|
作者：
Selezen, Andrii [1 ]
Moroz, Mykola [1 ]
Kogut, Yuri [2 ]
Smitiukh, Oleksandr [2 ]
Kordan, Vasyl [3 ]
Piskach, Lyudmyla [2 ]
机构：
[1] Natl Univ Water & Environm Engn, Rivne, Ukraine
[2] Lesya Ukrainka Volyn Natl Univ, Lutsk, Ukraine
[3] Ivan Franko Natl Univ Lviv, Lvov, Ukraine
来源：
PHYSICS AND CHEMISTRY OF SOLID STATE | 2024年 / 25卷 / 03期
关键词：
thallium tellurides; phase equilibria; solid solution; X-ray difraction; differential thermal analysis; scanning electron microscopy; DIAMOND-LIKE SEMICONDUCTOR; CRYSTAL-STRUCTURE; ELECTRONIC-STRUCTURE; LI2CDGES4; CDTE; SN; GE;
D O I：
10.15330/pcss.25.3.656-663
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Component interaction in the Tl2Te 2 Te - SiTe2 2 and Tl2SiTe3 2 SiTe 3 - Cd(Hg)Te systems was investigated by X-ray diffraction (XRD), differential thermal analysis (DTA), and scanning electron microscopy with energy dispersive spectroscopy (SEM/EDS) methods. The formation of four new ternary tellurides Tl18SiTe11, 18 SiTe 11 , Tl4SiTe4, 4 SiTe 4 , Tl2SiTe3, 2 SiTe 3 , and Tl2Si2Te5, 2 Si 2 Te 5 , was found in the Tl2Te 2 Te - SiTe2 2 system. The Tl18SiTe11 18 SiTe 11 and Tl2SiTe3 2 SiTe 3 compounds are formed congruently at 778 and 618 K, and Tl4SiTe4 4 SiTe 4 and Tl2Si2Te5 2 Si 2 Te 5 form incongruently at 546 and 584 K, respectively. Quaternary compounds Tl2CdSiTe4 2 CdSiTe 4 and Tl2HgSiTe4 2 HgSiTe 4 that form in the Tl2SiTe3 2 SiTe 3 - Cd(Hg)Te systems crystallize in the tetragonal space group I - 42 m & acy; nd melt incongruently at 826 and 738 K, respectively. Each compound has a homogeneity region up to 5 mol.% from the Tl2SiTe3 2 SiTe 3 side at 520 K.
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页码：656 / 663
页数：8
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