Anneal-induced enhancement of refractive index and hardness of silicophosphate glasses containing six-fold coordinated silicon

被引：19

作者：

Zeng, Huidan ^{[1
]}

Jiang, Qi ^{[1
]}

Li, Xiang ^{[1
]}

Ye, Feng ^{[1
]}

Tian, Tian ^{[1
]}

Zhang, Haoxuan ^{[1
]}

Chen, Guorong ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 02期

基金：

上海市自然科学基金;

关键词：

PHOSPHATE-GLASSES; 6-COORDINATED SILICON; CONSTRAINT THEORY; FIBER;

D O I：

10.1063/1.4905839

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A considerable number of optical devices have significantly benefited from the development of phosphate glasses as substrate materials. Introducing silica into sodium phosphate is an effective method to enhance its mechanical and optical properties. Through annealing treatment, the tetrahedral silicon oxide network structure (Si-(4)) can be transformed into an octahedral structure (Si-(6)) with more constraints. Here, we use high-temperature Raman and Nuclear Magnetic Resonance to reveal the mechanism of transformation between the Si-(4) and Si-(6) silicon oxide structures. The increase of the Si-(6) content results in the phosphate glasses having higher refractive index and hardness. Based on this, the refractive index contribution of SiO6 is obtained. (C) 2015 AIP Publishing LLC.

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页数：4

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