Composition dependence of physical and optical properties in Ge-As-S chalcogenide glasses

Yan Yang; Zhiyong Yang; Pierre Lucas; Yuwei Wang; Zhijie Yang; Anping Yang; Bin Zhang; Haizheng Tao

doi:10.1016/j.jnoncrysol.2016.03.003

Composition dependence of physical and optical properties in Ge-As-S chalcogenide glasses

Yan Yang, Zhiyong Yang, Pierre Lucas, Yuwei Wang, Zhijie Yang, Anping Yang, Bin Zhang, Haizheng Tao

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

The composition dependence of density (d), refractive index (n) and optical bandgap (E_g) of Ge-As-S chalcogenide glasses is investigated. It is shown that d correlates linearly with sulfur content but relatively poorly with the mean coordination number (MCN). It is also shown that n does not correlate directly with d, and instead a semi-empirical relation based on the molar refractivity (R) of Ge, As and S is derived, permitting to predict n from d with < 1% error. A convenient method based on diffuse reflectance is proposed to measure E_g of Ge-As-S glasses with good accuracy. It is shown that the value of E_g is dominated by the S content. These findings make it convenient to tailor the physical and optical properties of glasses in Ge-As-S system.

Original language	English (US)
Pages (from-to)	38-42
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	440
DOIs	https://doi.org/10.1016/j.jnoncrysol.2016.03.003
State	Published - May 15 2016

Keywords

Chalcogenide glasses
Diffuse reflectance spectrum
Optical bandgap
Refractive index

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.jnoncrysol.2016.03.003

Cite this

@article{fd6ca97b9ab04990a9525c838931905a,

title = "Composition dependence of physical and optical properties in Ge-As-S chalcogenide glasses",

abstract = "The composition dependence of density (d), refractive index (n) and optical bandgap (Eg) of Ge-As-S chalcogenide glasses is investigated. It is shown that d correlates linearly with sulfur content but relatively poorly with the mean coordination number (MCN). It is also shown that n does not correlate directly with d, and instead a semi-empirical relation based on the molar refractivity (R) of Ge, As and S is derived, permitting to predict n from d with < 1% error. A convenient method based on diffuse reflectance is proposed to measure Eg of Ge-As-S glasses with good accuracy. It is shown that the value of Eg is dominated by the S content. These findings make it convenient to tailor the physical and optical properties of glasses in Ge-As-S system.",

keywords = "Chalcogenide glasses, Diffuse reflectance spectrum, Optical bandgap, Refractive index",

author = "Yan Yang and Zhiyong Yang and Pierre Lucas and Yuwei Wang and Zhijie Yang and Anping Yang and Bin Zhang and Haizheng Tao",

year = "2016",

month = may,

day = "15",

doi = "10.1016/j.jnoncrysol.2016.03.003",

language = "English (US)",

volume = "440",

pages = "38--42",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

}

TY - JOUR

T1 - Composition dependence of physical and optical properties in Ge-As-S chalcogenide glasses

AU - Yang, Yan

AU - Yang, Zhiyong

AU - Lucas, Pierre

AU - Wang, Yuwei

AU - Yang, Zhijie

AU - Yang, Anping

AU - Zhang, Bin

AU - Tao, Haizheng

PY - 2016/5/15

Y1 - 2016/5/15

N2 - The composition dependence of density (d), refractive index (n) and optical bandgap (Eg) of Ge-As-S chalcogenide glasses is investigated. It is shown that d correlates linearly with sulfur content but relatively poorly with the mean coordination number (MCN). It is also shown that n does not correlate directly with d, and instead a semi-empirical relation based on the molar refractivity (R) of Ge, As and S is derived, permitting to predict n from d with < 1% error. A convenient method based on diffuse reflectance is proposed to measure Eg of Ge-As-S glasses with good accuracy. It is shown that the value of Eg is dominated by the S content. These findings make it convenient to tailor the physical and optical properties of glasses in Ge-As-S system.

AB - The composition dependence of density (d), refractive index (n) and optical bandgap (Eg) of Ge-As-S chalcogenide glasses is investigated. It is shown that d correlates linearly with sulfur content but relatively poorly with the mean coordination number (MCN). It is also shown that n does not correlate directly with d, and instead a semi-empirical relation based on the molar refractivity (R) of Ge, As and S is derived, permitting to predict n from d with < 1% error. A convenient method based on diffuse reflectance is proposed to measure Eg of Ge-As-S glasses with good accuracy. It is shown that the value of Eg is dominated by the S content. These findings make it convenient to tailor the physical and optical properties of glasses in Ge-As-S system.

KW - Chalcogenide glasses

KW - Diffuse reflectance spectrum

KW - Optical bandgap

KW - Refractive index

UR - http://www.scopus.com/inward/record.url?scp=84960455418&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84960455418&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2016.03.003

DO - 10.1016/j.jnoncrysol.2016.03.003

M3 - Article

AN - SCOPUS:84960455418

SN - 0022-3093

VL - 440

SP - 38

EP - 42

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

ER -

Composition dependence of physical and optical properties in Ge-As-S chalcogenide glasses

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this