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首页> 外文期刊>Journal of Nanoelectronics and Optoelectronics >Sol-Gel Synthesis and Yellow Luminescent Properties of Zn2SiO4:V Nanophosphor Materials
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Sol-Gel Synthesis and Yellow Luminescent Properties of Zn2SiO4:V Nanophosphor Materials

机译:Zn2SiO4:V纳米磷材料的溶胶 - 凝胶合成和黄色发光性能

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摘要

Pure Zn2SiO4 and Vanadium doped Zn2SiO4 green nanophosphor materials were synthesized using sol-gel method and thermally annealed at 1500 degrees C. The structural, morphology and optical properties were characterized using various techniques; X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Scanning electron microscope (SEM), high resolution transmission electron microscopy (HTEM), and photoluminescence spectroscopy (PL). XRD results shown beta-Zn2SiO4 phase with triclinic structure that obtained after the heat treatment of samples at 1500 degrees C. The PL spectrum of V-Zn2SiO4 shows an intensive emission band in the visible region centered at 526 nm. This band is related to presence of vanadium in the interfaces between Zn2SiO4 nanoparticles and the host matrix, SiO2. The interesting of these nanophosphors were attributed for its capability of showing color-tunable emissions in visible region under a single-wavelength excitation.
机译:使用溶胶 - 凝胶法合成纯Zn2SiO4和钒掺杂Zn2SiO4绿色纳米磷素材料,并在1500℃下热退火。使用各种技术表征结构,形态和光学性质; X射线衍射(XRD),X射线光电子体谱(XPS),扫描电子显微镜(SEM),高分辨率透射电子显微镜(HTEM)和光致发光光谱(PL)。 XRD结果显示了β-Zn2SiO4相位,其三级结构在1500摄氏度下的样品的热处理之后获得的。V-Zn2SiO4的PL光谱显示在可见区域中的强化发射带以526nm为中心。 该频段与Zn2SiO4纳米颗粒和宿主基质,SiO 2之间的界面中存在钒的存在。 这些纳米磷的有趣归因于其在单波长激发下显示可见区域中的可打色发射的能力。

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