The impact of Ag and Cu nanoparticles on optical and magnetic properties of new Tb2O3-PbO-TeO2 glass ceramic system
The impact of Ag and Cu nanoparticles on optical and magnetic properties of new Tb2O3-PbO-TeO2 glass ceramic system
复制标题
Ag和Cu纳米颗粒对新型Tb2O3-PbO-TeO2微晶玻璃体系光磁性能的影响
DOI：
10.1016/j.jallcom.2019.05.316
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发表时间：
2019
影响因子：
6.2
通讯作者：
E. Culea
中科院分区：
文献类型：
--
作者：
P. Pascuta;L. Pop;R. Ștefan;L. Olar;G. Borodi;L. Bolundut;E. Culea
采用熔融淬冷法制备了掺铽、AgNPs和CuNPs共掺的碲酸铅微晶玻璃。通过XRD、光致发光、紫外-可见光谱和磁性测量对样品进行了分析。XRD数据用于估计所获得的样品的性质，并且还用于确定微晶尺寸。UV-Vis光谱揭示了批料中铽离子的存在，并且对于共掺杂有CuNP的样品，存在被六个氧原子八面体包围的Cu 2+离子。基于UV-Vis数据计算光学带隙能量值。的光致发光光谱表现出从铽离子的发射，也揭示了这种发射的共掺杂剂的性质的影响。磁性测量数据显示出由于Tb 3+离子、金属纳米颗粒和样品的微观结构的存在而导致的复杂行为。
New lead tellurite glass ceramics doped with terbium (III) oxide and co-doped with AgNPs and CuNPs were obtained by melt quenching technique. The samples were analyzed by XRD, photoluminescence, UV–Vis spectroscopy and magnetic measurements. XRD data were used to estimate the nature of the obtained samples and also to determine the crystallites size. UV–Vis spectra reveal the presence of terbium ions in the batch and, for the samples co-doped with CuNPs, the presence of Cu2+ions octahedrally surrounded by six oxygen atoms. Optical band gap energy values were calculated based on the UV–Vis data. The photoluminescence spectra exhibit the emission from terbium ions and also reveal the influence of the co-dopant nature on this emission. Magnetic measurements data show a complex behavior due the presence of Tb3+ions, metal nanoparticles and to the microstructure of samples.