Structural and Physical Properties of AsxSe100-x Glasses

We prepare the samples of AsxSe100-x glasses with x = 20, 31, 40 and 50, and measure the glass-transition temperatures Tg, the density and elastic, and optical properties of the glasses. The density, elastic constants and third optical nonlinearity coefficient are found to exhibit the maximal values...

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Published in中国物理快报：英文版 no. 6; pp. 140 - 143
Main Author 房明磊 许峰 魏文猴 杨志勇
Format Journal Article
LanguageEnglish
Published 01.06.2014
Subjects
X射线光电子能谱分析
三阶非线性光学系数
光学性质
光学非线性
弹性常数
物理性质
玻璃化转变温度
玻璃结构
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Summary:We prepare the samples of AsxSe100-x glasses with x = 20, 31, 40 and 50, and measure the glass-transition temperatures Tg, the density and elastic, and optical properties of the glasses. The density, elastic constants and third optical nonlinearity coefficient are found to exhibit the maximal values for the As40Se6o composition. Analysis of x-ray photoelectron spectra of these AsxSe100-x glasses indicate that the chemically stoichiometric As40Se60 consists of perfect corner-sharing pyramidal AsSe3/2 units, while the others contain defect bonds such as As-As and Sere. The optical nonlinearity does not correlate with the concentration of Se, contrary to the report by Quemard et al for Ge-Se Masses.
Bibliography:We prepare the samples of AsxSe100-x glasses with x = 20, 31, 40 and 50, and measure the glass-transition temperatures Tg, the density and elastic, and optical properties of the glasses. The density, elastic constants and third optical nonlinearity coefficient are found to exhibit the maximal values for the As40Se6o composition. Analysis of x-ray photoelectron spectra of these AsxSe100-x glasses indicate that the chemically stoichiometric As40Se60 consists of perfect corner-sharing pyramidal AsSe3/2 units, while the others contain defect bonds such as As-As and Sere. The optical nonlinearity does not correlate with the concentration of Se, contrary to the report by Quemard et al for Ge-Se Masses.
FANG Ming-Lei, XU Feng, WEI Wen-Hou, YANG Zhi-Yong（ 1College of Science, Anhui University of Science and Technology, Huainan 232001 ; 2 The Centre for 3D Printing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714 ;3 School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116）
11-1959/O4
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/6/066101