Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-2-17
pubmed:abstractText
The glass-forming region of the GeSe(2)-In(2)Se(3)-KI system was reported firstly. The dependence of physical, thermal and optical properties on compositions as formula of (1-x)(0.8GeSe(2)-0.2In(2)Se(3))-xKI (x=0, 0.1, 0.2, 0.3) chalcohalide glasses was investigated. The allowed direct transition and indirect transition, and Urbach energy of samples were calculated according to the classical Tauc equation. The results show that the glass system has good thermal stability and that there is an obvious blue-shift at the visible absorbing cutting-off edge. When the dissolved amount of KI increased from 0 to 30mol%, the direct optical band gap and the indirect optical band gap were in the range from 1.617 to 1.893eV and 1.573 to 1.857eV. With the decrease of the molar refraction the refractive index decreases, optical band gap and metallization criterion increase. The relationship between energy band gap and metallization criterion was analyzed and the optical properties of chalcohalide glasses were summarized.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1873-3557
pubmed:author
pubmed:copyrightInfo
Copyright 2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1125-9
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Research on optical band gap of the novel GeSe2-In2Se3-KI chalcohalide glasses.
pubmed:affiliation
Faculty of Information Science and Engineering, Ningbo University, Ningbo, China. wodehaiyang88@126.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't