Structure of molecule-rich chalcogenide glasses along the join P4Se3-As4Se3: Results from 77Se and 31P NMR and Raman spectroscopy

被引：1

作者：

Yuan, Bing ^{[1
]}

Aitken, Bruce G. ^{[2
]}

Kaseman, Derrick C. ^{[3
]}

Yu, Ping ^{[3
]}

Sen, Sabyasachi ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Mat Sci & Engn, Davis, CA 95616 USA

[2] Corning Inc, Sci & Technol Div, Corning, NY 14831 USA

[3] Univ Calif Davis, Nucl Magnet Resonance Facil, Davis, CA 95616 USA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2023年 / 613卷

基金：

美国国家科学基金会;

关键词：

Chalcogenide; Glass structure; Raman spectroscopy; NMR spectroscopy; Glass transition; SE GLASSES; SULFIDE GLASSES; NETWORK;

D O I：

10.1016/j.jnoncrysol.2023.122359

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The atomic structure of unusually molecule-rich glasses along the P4Se3-As4Se3 join with 0 to 70 mol% P4Se3 is studied using Raman, 77Se magic-angle-spinning (MAS) and 2D 31P phase adjusted spinning sideband (PASS) nuclear magnetic resonance (NMR) spectroscopy. When taken together, the spectroscopic results indicate the coexistence of cage-like PxAs4-xSe3 molecular moieties and corner-shared P-and As-containing pyramidal network moieties in the structure of these glasses. Increasing substitution of As with P gives rise to a monotonic increase in the total molecule:network ratio, which is shown to be consistent with the compositional variation in the glass transition temperature.

引用

页数：5

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