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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Sol-gel Synthesis and Photoluminescent Properties of Y2SiO5: Ce Phosphors
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 225-227)
Author(s): Ji-ming Zhang, Key Laboratory of carbon fiber and functional polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing
Dong-lin Zhao, Key Laboratory of carbon fiber and functional polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing
Zeng-min Shen, Key Laboratory of carbon fiber and functional polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing
Abstract: Blue light emitting Y2SiO5:Ce phosphors were synthesized by sol-gel method combined with a furnace firing from the sol-gel solution made with Y(NO3)3?6H2O, Ce(NO3)3?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.
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