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Correlating Structure with Threshold Behavior of Chalcogenide Glasses Within Ge–Sn–Se Ternary System
Author(s) -
Qiao Beijing,
Chen Feifei,
Huang Yicong,
Lin Ruiqiang,
Zhang Xiaoyu,
Dai Shixun,
Shen Xiang,
Nie Qiuhua,
Zhang Xianghua
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14477
Subject(s) - chalcogenide , raman spectroscopy , ternary operation , materials science , chalcogenide glass , coordination number , crystallography , tetrahedron , chemical bond , chemical physics , chemistry , optics , optoelectronics , physics , ion , programming language , organic chemistry , computer science
A systematic investigation of the optical and structural properties of chalcogenide glasses in Ge–Sn–Se ternary system is presented. We have found a threshold behavior of optical property, namely, existence of transitional composition of the Ge–Sn–Se glasses, with progressive replacement of Se by Sn. Calculation of mean coordination number indicates that the transition‐like feature of optical property is associated with the evolution of chemical ordering of the Ge–Sn–Se network. Analysis of Raman spectra of the glasses explains that the interaction between Se–Se bonds, Sn(Se 1/2 ) 4 tetrahedra, and Sn–Sn homopolar bonds is the origination of such optical phenomenon.