材料科学
极化率
吸收(声学)
拉曼光谱
结晶
热稳定性
分析化学(期刊)
红外线的
吸收边
化学物理
化学工程
化学
光电子学
分子
光学
带隙
复合材料
物理
色谱法
工程类
有机化学
作者
Renato Grigolon Capelo,Ricardo Santos Baltieri,Marcos de Oliveira,Danilo Manzani
出处
期刊:ACS omega
[American Chemical Society]
日期:2023-09-13
卷期号:8 (38): 35266-35274
标识
DOI:10.1021/acsomega.3c05010
摘要
Tellurite glasses have garnered considerable interest as optical host materials due to their advantageous properties, including low processing temperature, high resistance to corrosion and crystallization, and excellent solubility for rare earth ions. However, their applicability in the infrared (IR) region is limited by the absorption of species with distinct vibrations. The incorporation of fluorides has emerged as a promising approach to reduce hydroxyl (OH) absorption during the precursor melting process. In this study, we investigated the influence of ZnF2 on a glass matrix composed of TeO2-ZnO-Na2O, resulting in notable changes in the glass structure and optical properties, with Eu3+ serving as an environmental optical probe. The samples underwent comprehensive structural, thermal, and optical characterization. Structural analyses encompassed 19F and 125Te nuclear magnetic resonance (NMR), with the latter being complemented by mathematical simulations, and these findings were consistent with observations from Raman scattering. The main findings indicate an enhancement in thermal stability, modifications in the Te-O connectivity, and a reduction in emission intensity attributed to the effects of ligand polarizability and symmetry changes around Eu3+. Additionally, the fluorotellurite matrices exhibited a shift in the absorption edge toward higher energies, accompanied by a decrease in mid-IR absorptions, thereby expanding the transparency window. As a result, these glass matrices hold substantial potential for applications across various regions of the electromagnetic spectrum, including optical fiber drawing and the development of solid-state emitting materials.
科研通智能强力驱动
Strongly Powered by AbleSci AI