探索ZnF2对 Tellurite玻璃的影响:揭示OH含量,结构和光学性能的变化
Renato Grigolon Capelo1, Ricardo Santos Baltieri1, Marcos de Oliveira2
1São Carlos Institute of Chemistry-IQSC, University of São Paulo-USP, São Carlos 13560-970, SP, Brazil.
ACS omega
|October 2, 2023
概括
将化物添加到化石玻璃中,可以提高热稳定性和中红外透明度. 这提高了它们在光纤绘制和固态发射材料方面的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 玻璃科学 玻璃科学
- 光学材料 光学材料
背景情况:
- 土石玻璃是有前途的光学主机,由于低加工温度和良好的稀土离子溶解性.
- 红外线 (IR) 吸收限制了它们的适用性;化物添加可以减少氧化物 (OH) 吸收.
- 对TeO2-ZnO-Na2O眼镜添加ZnF2的研究是为了改善光学性能.
研究的目的:
- 研究ZnF2对TeO2-ZnO-Na2O玻璃结构和光学性能的影响.
- 评估这些甲酸玻璃在红外线应用中的潜力.
- 使用Eu3+作为玻璃矩阵内的环境变化探测器.
主要方法:
- 合成ZnF2-修饰的化石玻璃.
- 使用19F和125Te核磁共振 (NMR) 和拉曼散射进行结构性表征.
- 热分析以确定稳定性.
- 包括吸收和排放光谱在内的光学表征.
主要成果:
- 观察到增强的热稳定性和修改的Te-O键连接性.
- 减少中红外吸收和蓝色移动的吸收边缘扩大了透明度窗口.
- 由于连接物极化性和对称性变化,Eu3+的发射强度下降.
结论:
- 甲玻璃具有更好的热稳定性和更广泛的透明度,使其适合光学应用.
- 加入ZnF2有效地减少了红外线的吸收,提高了材料的潜力.
- 这些眼镜对光纤绘制和整个电磁频谱的固态发射设备具有前景.
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