首页|Synthesis and Luminescent Properties of Mn~(2+)-Doped Zinc Silicate Phosphors by Sol-Gel Method
Synthesis and Luminescent Properties of Mn~(2+)-Doped Zinc Silicate Phosphors by Sol-Gel Method
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Trans Tech Publications Ltd
Green light emitting Mn~(2+)-doped Zn_2SiO_4 (Zn_2SiO_4:Mn~(2+)) phosphor nano-particles were synthesized by sol-gel method combined with a furnace firing from the sol-gel solution made with ZnO, MnCO_3 and tetraethoxysilan. The influences of annealing temperatures on the microstructures and photoluminescent properties of the Zn_2SiO_4:Mn~(2+) phosphors were investigated. The structural details of the phosphors were examined through XRD and SEM. The photoluminescent properties of the Zn_2SiO_4:Mn~(2+) phosphors were characterized by excitation and emission spectra. The results indicate that the XRD patterns of the Zn_2SiO_4:Mn~(2+) phosphors exhibit a willemite structure (α-Zn_2SiO_4). Green photoluminescence whose emission peak is located at 525 nm were observed from the synthesized phosphor particles under UV excitation. The photoluminescent mechanisms of the Zn_2SiO_4:Mn~(2+) phosphors were discussed.
Zn_2SiO_4:Mn~(2+)phosphorsol-gel
Ji-Ming Zhang、Dong-Lin Zhao、Zeng-Min Shen
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State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
NETL
NSTL
Trans Tech Publications Ltd
