Published in

IOP Publishing, Chinese Physics B, 5(25), p. 057105

DOI: 10.1088/1674-1056/25/5/057105

Links

Tools

Export citation

Search in Google Scholar

Homopolar bonds in Se-rich Ge‒As‒Se chalcogenide glasses

Journal article published in 2016 by Si-Wei Xu, Rong-Ping Wang, Zhi-Yong Yang, Li Wang, Luther-Davies Barry
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

We have prepared three groups of Ge-As-Se glasses in which the Se content is 5.5 mol%, 10 mol%, and 20 mol% rich, respectively. We explored the possibility of suppressing the formation of the Ge-Ge and As-As homopolar bonds in the glasses. Thermal kinetics analysis indicated that the 5.5 mol% Se-rich Ge11.5As24Se64.5 glass exhibits the minimum fragility and thus is most stable against structural relaxation. Analysis of the Raman spectra of the glasses indicated that the Ge-Ge and As-As homopolar bonds could be almost completely suppressed in 20 mol% Se-rich Ge₁₅As₁4Se₇₁ glass.