FT -IR and Raman spectroscopic studies of xAg2O-(100-x)[3B2O3·As2O3] glass system

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Optoelectronics and Advanced Materials Pub Date : 2010-01-10 DOI:10.1142/S0217984910022172

S. C. Baidoc, I. Ardelean

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引用次数: 5

Abstract

Structural analysis of xAg20(100-x)[3B 2 O 3 ·As 2 O 3 ] glass system, with 0 ≤ x ≤ 10 mol%, was performed by means of FT - IR and Raman spectroscopies. The purpose of this work is to investigate the structural changes that appear in the 3B 2 O3·As 2 O 3 glass matrix with the addition and increasing of silver ions content. Boroxol rings, pyro-, ortho-, di-, tri-, tetraand penta-borate groups and structural units characteristic to As 2 O 3 were found in the structure of the studied glasses. At small silver oxide content the predominant structural units are those in which boron is three-fold coordinated. For higher silver oxide concentrations (x ≥ 5 mol%) the number of four-fold coordinated boron units is increasing. The changes in the A r = A 4 /A 3 (A 4 and A 3 reflect the relative amount of tetrahedral (BO 4 and B∅ - 4 ) and triangular (BO 3 and BO 2 O - ) borate species) ratio also shows the fact that silver oxide influence the boron coordination number. The Raman analysis leads to similar conclusions as FT- IR measurements.

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xAg2O-(100-x)[3B2O3·As2O3]玻璃体系的红外光谱和拉曼光谱研究

用红外光谱和拉曼光谱对0≤x≤10 mol%的xAg20(100-x)[3B 2o3·As 2o3]玻璃体系进行了结构分析。本研究的目的是研究随着银离子的添加和增加，3B o2·As o2玻璃基体的结构变化。硼砂环、热硼酸、邻硼酸、二硼酸、三硼酸、四硼酸和五硼酸基团以及具有as2o3特征的结构单元均存在于所研究的玻璃结构中。在氧化银含量小的情况下，主要的结构单元是那些硼是三重配位的结构单元。当氧化银浓度较高(x≥5 mol%)时，四重配位硼单元的数量增加。A r = A 4 /A 3 (A 4和A 3反映了四面体(bo4和B∅- 4)和三角形(bo3和bo2o -)硼酸盐种类的相对数量)比的变化也表明氧化银影响硼配位数的事实。拉曼分析得出了与FT- IR测量相似的结论。

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来源期刊

Journal of Optoelectronics and Advanced Materials 工程技术-材料科学：综合

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

6.5 months

期刊介绍： The Journal of Optoelectronics and Advanced Materials (J. Optoelectron. Adv. M.) appears with 12 issues per year and publishes papers in the field of optoelectronics, photonics, and new advanced materials (nonlinear optical materials, crystalline and non-crystalline materials, nano-structured materials, magnetic materials, functional and smart materials, materials based on polymers, biomaterials) of relevance for optoelectronics and photonics.