2011_11_6bc37f6e by changcheng2


									                                           2011 INTERNATIONAL SYMPOSIUM ON NANO SCIENCE AND TECHNOLOGY
                                                                           Tainan, TAIWAN, 18-19 November 2011

      Photoluminescence Characteristics of the Nano ZnSiO2:Mn Phosphors
                     Prepared by Solution-based Method

                   Fann-Wei Yang1, Kai-Huang Chen2*, and Chien-Min Cheng1
             Department of Electronic Engineering, Southern Taiwan University, Tainan, Taiwan, R.O.C.
          Department of Electronics Engineering and Computer Science, Tung-Fang Design University, Kaohsiung,
                                                    Taiwan, R.O.C.
                                   d9131802@mail.tf.edu.tw, NSC-100-2221-272-002

      Abstract --- In this study, solution-based method was used to synthesize proportioned nano-ZnO and SiO2
powders into Zn2SiO4 phosphor, and to achieve better control on grain size and grain shape than traditional
powder. Manganese elements were used to replace zinc elements; and to achieve better control on grain size
and grain shape than traditional powder. With different sintering conditions, With different sintering conditions,
the effect of the luminescent intensity due to sintering temperature and the concentration of activator would be
discussed by the X-Ray Diffraction, SEM and TEM were utilized in the characterization of phase purity and
microstructure of phosphor particles. Photoluminescence (PL) spectroscopy was utilized to characterize the
optical properties. In addition, the efficiency of luminescence of the phosphor ceramics was also carried out the
electroluminescence (EL) and decay time measurement.
      Keywords: Phosphors, Solution-based Method, Photoluminescence, electroluminescence, decay time

[1]   R.Morimo and K.Matae, Mater. Res. Bull., 24 (1989) 175.
[2]   T.Graham, J. Chem. Soc, ,17 (1864) 318.
[3]   Ray, J. Am. Ceram. Soc., 52 (1969) 344.
[4]   T.H. Cho, H.J. Chang, Ceramics Internationl 29 (2003) 611-618
[5]   Junxi Wan, Zhenghua Wang, Xiangying Chen, Li Mu, Weichao Yu, Yitai Qian, J. Lumi., 121 (2006) 32–38.
[6]   CR. Ronda, J. Lumi., 72-74 (1997) 49-54.


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