Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (21): 2550-2554.DOI: 10.6023/A1103092J Previous Articles     Next Articles

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  1. (陕西师范大学化学化工学院 陕西省大分子科学重点实验室 西安 710062)
  • 投稿日期:2011-03-09 修回日期:2011-06-18 发布日期:2011-07-02
  • 通讯作者: 焦桓
  • 基金资助:


Hydrothermal Synthesis and Luminescence of AgGd0.9Eu0.1(WO4)2 Phosphor

DU Yan-Rong, JIAO Huan, HE Di-Ping   

  1. (Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xian 710062)
  • Received:2011-03-09 Revised:2011-06-18 Published:2011-07-02

The hyperfine red phosphors, Eu3+ doped AgGd(WO4)2, with various shapes have been prepared by a simply hydrothermal synthesis procedure. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), transmission electron microscopy (TEM) and photoluminescence (PL) spectroscopy were used to characterize the products. A series of controlled experiments indicate that the shape and size of as-prepared architectures can be tuned effectively by controlling the reaction conditions, such as pH values of the initial solution and different kinds of surfactants. The results of XRD indicated that all of the synthesized samples were monocline phase. The pH value of the starting solution and the surfactant played a key role in the formation of products with different morphologies. Spherical, rod-like and hollow spherical particles could be obtained with different particle size by adjusting the reaction condition. AgGd0.9Eu0.1(WO4)2 emission spectrum showed the characteristic emission of Eu3+. The luminescence intensity of the synthesized samples can be influenced by the morphology and the size of particles.

Key words: hydrothermal synthesis, morphology control, photoluminescence, tungstate