This paper aims to compare the structural and optical properties of ternary Boro-tellurite glass with the addition of two different chemical modifier. Six glass samples from composition [(TeO 2 ) 0.7 (B 2 O 3 ) 0.3 ] 1-x (BaO) x (x = 0.10, 0.20 and 0.30 mol%) and [(TeO 2 ) 0.7 (B 2 O 3 ) 0.3 ] 1-x (Bi 2 O 3 ) x (x = 0.10, 0.20 and 0.30 mol%) were prepared by melt quenching method with suitable melting and quenching temperature. The X -ray diffraction (XRD) pattern confirms the amorphous nature of all glasses and the Fourier transform infrared spectroscopy (FTIR) spectra explore the fundamental groups and the local structural units in two different boro-tellurite glasses. The density for both glass series increased as barium oxide and bismuth o xide content increased. The optical band gap , E opt values for bismuth- boro-tellurite glasses are between 2.15– 2.4 eV, while barium-boro-tellurite glasses are bet ween 2.25–2.44 eV. The highest concentration of Bi 2 O 3 in glass system sho ws the smal lest E opt . In conclusion, the obtained results shows that the addition of bismuth oxide in boro-tellurite glass improves its structural and optical properties.
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机译：本文旨在通过添加两种不同的化学改性剂来比较三元硼碲铁矿玻璃的结构和光学性质。组成为[（TeO 2）0.7（B 2 O 3）0.3] 1-x（BaO）x（x = 0.10、0.20和0.30 mol％）和[（TeO 2）0.7（B 2 O 3）的六个样品通过熔融淬火法在适当的熔化和淬火温度下制备0.3] 1-x（Bi 2 O 3）x（x ＝ 0.10，0.20和0.30mol％）。 X射线衍射（XRD）图案确认了所有玻璃的无定形性质，傅立叶变换红外光谱（FTIR）光谱探索了两种不同硼铁矿玻璃中的基本基团和局部结构单元。两种玻璃系列的密度都随氧化钡和氧化铋含量的增加而增加。铋-硼-碲玻璃的光学带隙E opt值在2.15-2.4 eV之间，而钡-硼-碲玻璃的光学带隙在2.25-2.44 eV之间。玻璃系统中Bi 2 O 3的最高浓度最小。总之，所获得的结果表明，在硼-碲玻璃中添加氧化铋改善了其结构和光学性能。
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