钐
光致发光
材料科学
荧光粉
分析化学(期刊)
傅里叶变换红外光谱
发光
透射电子显微镜
钡
热重分析
扫描电子显微镜
差热分析
光谱学
衍射
化学工程
无机化学
纳米技术
光学
化学
光电子学
复合材料
工程类
物理
色谱法
量子力学
冶金
作者
Mehrdad Zahedi,S.A. Hassanzadeh-Tabrizi,Ali Saffar‐Teluri
标识
DOI:10.1016/j.ceramint.2018.03.006
摘要
Ba2SiO4:Sm3+ nanostructure phosphors have been synthesized by a simple sol-gel method. Phase evaluation, structural characteristics and photoluminescence properties of the synthesized Ba2SiO4:Sm3+ powders were studied using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), thermogravimetric and differential thermal analysis (TG-DTA), Fourier transform infrared spectroscopy (FTIR), and photoluminescence spectroscopy (PL). X-ray diffraction results showed that all synthesized samples were single-phase barium silicate (Ba2SiO4) and samarium (Sm) ions were incorporated into the lattice of Ba2SiO4. Adding samarium to barium silicate changed the microstructure from vermicular to spherical structures. The Photoluminescence spectrum of Ba2SiO4:Sm3+ phosphors exhibited characteristic emission peaks at 562 nm which is due to the 4G5/2 → 6H7/2 transition of samarium ions and corresponds to the orange region. The results showed that the barium silicate activated with 0.08 mol samarium exhibited the highest PL intensity.
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