外文题目: Statistical structure analysis of GeO2 modified Yb3+: Phosphate glasses based on Raman and FTIR study
作者: Zhang, L. Y.; Li, H.; Hu, L. L.
刊名: J. Alloy. Compd.
年: 2017 卷: 698 页： 103--113
英文关键词:
Statistical analysis; Structure-property correlation; Raman and IR spectra; Phosphate glass; Germanophosphate glass
SODIUM GERMANATE GLASSES; INFRARED-SPECTRA; GERMANOPHOSPHATE GLASSES; ULTRAPHOSPHATE GLASSES; SILICATE-GLASSES; SPECTROSCOPY; LITHIUM; ALKALI; NMR; SYSTEM
英文摘要:
Structural modification of conventional Yb3+ doped phosphate glass by GeO2 was shown to significantly improve both thermal and spectroscopic properties, namely, transition temperature, coefficient of thermal expansion, effective line width, Stark splitting, and fluorescence lifetime. Raman and IR spectroscopic techniques, in conjunction with a statistical analysis method, were used to determine plausible network structure units, or "genes", which had significant effects on the properties, specifically the distributions of tetrahedron units (Ge-[4]-O-Ge-[4], Ge-[4]-O-P, P-O-P) and octahedron units (Ge-[6]-O-Ge-[6]) in the GeO2-containing glasses. The use of statistical approach enabled us to build linear mathematic functions of network structure units - property relationships, or models, and the model predictions were closely matched with the measured values. The outcome demonstrates that statistically derived results from Raman and/or IR spectra can be used to aid glass design, achieving target properties. (C) 2016 Elsevier B.V. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1016/j.jallcom.2016.12.175


全文传递服务