Sol-gel Synthesis and Photoluminescent Properties of Y2SiO5: Ce PhosphorsReport as inadecuate




Sol-gel Synthesis and Photoluminescent Properties of Y2SiO5: Ce Phosphors - Download this document for free, or read online. Document in PDF available to download.

Blue light emitting Y2SiO5:Ce phosphors were synthesized by sol-gel method combined with a furnace firing from the sol-gel solution made with YNO33?6H2O, CeNO33?6H2O, tetraethoxysilan and ethanol. The microstructures of the phosphors were investigated by XRD and SEM. The photoluminescent properties of the Y2SiO5:Ce phosphors were characterized by excitation and emission spectra. The size of the Y2SiO5:Ce phosphor powders is in a range of 2-5?m. The results indicate that the XRD patterns of the Y2SiO5:Ce phosphors exhibit a X2-Y2SiO5 structure. Blue photoluminescence whose emission peak is located at 421 nm were observed from the synthesized phosphor particles under UV excitation. The photoluminescent mechanisms of the Y2SiO5:Ce phosphors were discussed.

KEYWORDS

Y2SiO5:Ce; photoluminescence; phosphor; Sol-gel method

Cite this paper







Author: Ji-ming Zhang, Dong-lin Zhao, Zeng-min Shen

Source: http://www.scirp.org/



DOWNLOAD PDF




Related documents