Abstract Glass compositions 42 P2O5–40ZnO–(18-x)Na2O: xNiO in which x varies from 0 to 6 mol.% with step of 1 mol.%, are prepared by using the conventional melt annealing method. The effect of nickel ions in the investigated glass system appears in the combined structural and optical properties. Some structural and optical parameters such as molar volume, interionic distance, optical band gap, and Urbach energy are deduced. The variations in the spectroscopic data, which is affected by the deviations in composition and coordination state of nickel ions, are studied in relation to the structural evolution. The analysis of FTIR of the proposed structure shows that the local network structure is based mainly on Q 1 and Q 2 tetrahedron units connected by P–O–P linkages. Also, the optical properties show that the nickel ions occupy both tetrahedral and octahedral sites in the glass network. Graphical Abstract

中文翻译：

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NiO 掺杂到 P2O5-ZnO-Na2O 玻璃体系中的双带通滤波器和双带隙研究

摘要 玻璃组合物 42 P2O5–40ZnO–(18-x)Na2O: xNiO，其中 x 从 0 到 6 mol.%，步长为 1 mol.%，是通过使用传统的熔融退火方法制备的。镍离子在所研究的玻璃系统中的影响表现在结构和光学特性的组合中。推导了一些结构和光学参数，如摩尔体积、离子间距、光学带隙和 Urbach 能量。受镍离子组成和配位状态偏差的影响，光谱数据的变化与结构演变有关。对所提出结构的 FTIR 分析表明，局部网络结构主要基于通过 P-O-P 键连接的 Q 1 和 Q 2 四面体单元。还，光学性质表明镍离子占据玻璃网络中的四面体和八面体位置。图形概要