Bismuth silicate with sillenite structure (Bi₁₂SiO₂₀) nanophase was prepared via melt–quenching technique in the Bi₂O₃–ZnO–SiO₂ glass system. The effect of replacement ZnO by Bi₂O₃ was studied. Their thermal behavior showed the change of glass transition temperature (Tg) from 577 °C in the Bi₂O₃-free glass to 438 °C in ZnO-free glass. In addition, the crystallization temperatures were not only changed from two to one peak, but also decreased from 927 to 476 °C in the same order. According to the heat treatment regimes, willemite, sillenite, tetragonal Bi₂O₃, cubic Bi₂O₃ and traces of ZnO were crystallized with different ratios depending on the change in composition and temperature. Sillenite was enhanced with increase heat treatment temperature and/or Bi₂O₃ additions. Heat treatment at 650 °C/10 h revealed the best regime, where higher degree of crystallization was achieved. The microstructure at 700 ℃/30 min showed nano-scale oriented parallel rod crystals with hexagonal making at their end, whereas clusters of irregular nano-size crystals was appeared at 650 °C/10 h. Transmission spectra of the glasses in UV–Vis–midIR region were increased with Bi₂O₃ addition reaching 74% in 100B. Photoluminescence properties of both glasses and their corresponding glass–ceramics showed luminescence nature since the blue and green colors were clearly appeared. Calculation of optical bandgap (E_opt) revealed 3.2–2.19 eV with increasing Bi₂O₃; these values are located in the semiconducting range. The prepared samples can be utilized in electro-optical instruments, also the high transmission in mid-IR nominate it for IR transmitting windows.

_{在 Bi 2} O ₃ –ZnO–SiO ₂玻璃体系中，通过熔体淬火技术制备了具有硅线结构的硅酸铋 (Bi ₁₂ SiO _{20 ) 纳米相。研究了用Bi 2} O ₃替代ZnO的效果。它们的热行为表明玻璃化转变温度 (Tg) 从不含 Bi ₂ O ₃的玻璃中的 577 °C变为不含 ZnO 的玻璃中的 438 °C。此外，结晶温度不仅从两个峰值变为一个峰值，而且以相同的顺序从 927 °C 下降到 476 °C。根据热处理制度，硅锌矿、硅锰矿、四方晶 Bi ₂ O ₃、立方Bi ₂ O ₃和微量ZnO 以不同的比例结晶，这取决于组成和温度的变化。随着热处理温度的增加和/或 Bi ₂ O ₃的添加，硅锰矿得到增强。在 650 °C/10 小时的热处理揭示了最佳状态，其中实现了更高程度的结晶。700 ℃/30 min 时的微观结构为纳米级取向的平行棒状晶体，末端为六角形，而 650 ℃/10 h 时出现不规则的纳米级晶体簇。_{Bi 2} O ₃增加了玻璃在 UV-Vis-midIR 区域的透射光谱100B时加成率达到74%。两种玻璃及其相应的微晶玻璃的光致发光特性均显示出发光性质，因为蓝色和绿色清晰可见。光学带隙 (E _opt ) 的计算显示 3.2–2.19 eV 随着 Bi ₂ O ₃的增加；这些值位于半导体范围内。制备的样品可用于电光仪器，中红外的高透射率使其成为红外透射窗。