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Structural properties of Er~(3+) doped lead zinc phosphate glasses

机译:掺Er〜(3+)磷酸锌铅玻璃的结构性能

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摘要

Structural properties are studied for some Er3+ doped lead zinc phosphate glasses prepared by conventional melt quenching followed by heat-treatment at suitable temperature. Differential thermal analysis (DTA) confirms the glass transition near 150 degrees C and crystallization temperature of the glasses at about 430 degrees C. SEM pictures reveal grain growth similar to columnar one during annealing for the ceramic phase of the above glasses. XRD studies confirms the dominant phase of PbZnP2O7 in the polycrystalline glass ceramics. From UV-VIS studies, different optical parameters like refractive index, electronic polarizability etc. indicate modified values. FTIR spectroscopy shows the presence of various infrared bands of PO43- and P2O74- with transmission peaks at 480, 740, 910, 1071 and 1260 cm(-1) respectively. The relative population of bending units of O-P-O and O=P-O decreases with the increase in Er3+ content. A small increase in the population of asymmetric stretching of P=O bond is also observed.
机译:通过常规的熔体淬火,然后在适当的温度下进行热处理,研究了某些掺Er3 +的磷酸锌铅玻璃的结构性能。差示热分析(DTA)证实了在150℃附近的玻璃化转变和玻璃的结晶温度在约430℃。SEM照片显示在上述玻璃的陶瓷相的退火过程中晶粒生长类似于柱状晶粒。 XRD研究证实了多晶玻璃陶瓷中PbZnP2O7的主要相。根据UV-VIS研究,不同的光学参数(例如折射率,电子极化率等)指示出修改后的值。 FTIR光谱显示PO43-和P2O74-的各种红外波段的存在,其透射峰分别在480、740、910、1071和1260 cm(-1)。随着Er3 +含量的增加,O-P-O和O = P-O的弯曲单元的相对数量减少。还观察到P = O键的不对称拉伸的群体的少量增加。

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