Infrared, Raman and XPS spectroscopic studies of Bi2O3-B2O3-Ga2O3 glasses
Infrared, Raman and XPS spectroscopic studies of Bi2O3-B2O3-Ga2O3 glasses
复制标题
Bi2O3·B2O3·GeO2 玻璃的红外、拉曼和 XPS 光谱研究
DOI：
10.1016/j.solidstatesciences.2009.09.007
复制
发表时间：
2009-12-01
影响因子：
3.5
通讯作者：
Hu, Lili
中科院分区：
文献类型：
--
作者：
Fan, Huiyan;Wang, Guonian;Hu, Lili
通过常规熔融方法制备组成为 60Bi(2)O(3)-(40-x)B2O3-xGa(2)O(3) (x = 5, 10, 15, 20 mol%) 的玻璃。通过差热分析（DTA）研究了热性能，并通过红外、拉曼和X射线光电子能谱（XPS）探测了玻璃的结构。结果表明，密度、折射率和光学碱度随着Ga2O3含量的增加而增加。玻璃化转变温度(T-g)、起始结晶温度(T-x)、ΔT(T-x-T-g)随着Ga2O3含量的增加而降低。随着Ga2O3的增加，紫外和红外的截止边向更长的波长移动。另一方面，Ga2O3的添加导致硼原子的配位数从3逐渐变化到4。XPS结果表明，当Ga2O3含量为5mol%时，Bi5+和Bi3+均存在，而Bi5+的量随着Ga2O3含量的增加而减少。该玻璃主要由[BiO6]、[BO3]、[BO4]和[GaO4]多面体组成。眼镜应该具有层结构。 [BO3]三角形和[BO4]四面体可以位于[GaO4]四面体和[BiO6]八面体之间，以防止结晶并补偿电荷。 (C) 2009 Elsevier Masson SAS。版权所有。
Glasses with compositions 60Bi(2)O(3)-(40-x)B2O3-xGa(2)O(3) (x = 5, 10, 15, 20 mol%) are prepared by conventional melting method. The thermal properties are investigated by differential thermal analysis (DTA) and the structures of the glasses were probed by Infrared, Raman and X-ray photoelectron spectroscopy (XPS). The results show that density, refractive index and optical basicity increase with the increase of Ga2O3. The glass transition temperature (T-g), the onset crystallization temperature (T-x), Delta T (T-x-T-g) decrease with the content of Ga2O3. The cut-off edges in ultraviolet and infrared shift to longer wavelength with the increase of Ga2O3. On the other hand, the addition of Ga2O3 causes a progressive coordination number change of the boron atom from 3 to 4. XPS result indicates both Bi5+ and Bi3+ exist in 5 mol% Ga2O3 content, while Bi5+ amounts decrease with the increase of Ga2O3 contents. The glass is mainly composed of [BiO6], [BO3], [BO4] and [GaO4] polyhedra. Glasses are supposed to have layer structure. [BO3] triangle and [BO4] tetrahedra may be located between the [GaO4] tetrahedral and [BiO6] octahedra to prevent crystallization and to compensate electric charge. (C) 2009 Elsevier Masson SAS. All rights reserved.