FAR INFRARED TRANSMISSION AND STRUCTURE OF PB-GE-S SEMICONDUCTING GLASSES

被引：5

作者：

BHATIA, KL ^{[1
]}

KATYAL, SC ^{[1
]}

VENUGOPALAN, S ^{[1
]}

机构：

[1] RAMAN RES INST,BANGALORE 560006,MYSORE,INDIA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1979年 / 31卷 / 03期

关键词：

D O I：

10.1016/0022-3093(79)90145-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Lead sulfide has been found to form stable glasses with GeS2 in the presence of GeS. Far-infrared transmission spectra of the glassy compositions x = 0.46, 0.23 and 0.115 in the pseudoternary (PbS)x (GeS2)0.70-x (GeS)0.30 and of the stoichiometric crystalline composition Pb2GeS4 have been observed for the first time. The results indicate a two optical mode behaviour of the compounds. The presence of the heavy lead atom in the GeS network seems to appreciably affect the bond bending modes of the GeS4 molecular unit without significantly disturbing its bond stretching vibrations. The presence of S3GeGeS3 molecular units in the amorphous compositions and their absence in Pb2GeS4 are indicated. © 1979.

引用

页码：333 / 337

页数：5

共 10 条

[1]

ANPRIJOM AM, 1975, STRUCTURE PROPERTIES, P247

[2] FAR IR TRANSMISSION AND RAMAN-SCATTERING IN PB-AS-S SEMICONDUCTING GLASSES [J].