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P‐84: Enhanced Luminescent Properties of Sr 3 MgSi 2 O 8 : Eu 2+ Spherical Blue Phosphor Via Modified Sol‐gel Approach
Author(s) -
Pan Wen,
Wang Ninghui,
Wang Zhiqiang,
Li Guofeng,
Ning Guiling
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3500011
Subject(s) - phosphor , luminescence , materials science , sol gel , annealing (glass) , analytical chemistry (journal) , homogeneous , stoichiometry , diffraction , x ray crystallography , mineralogy , nuclear chemistry , optics , chemistry , nanotechnology , optoelectronics , metallurgy , chromatography , physics , thermodynamics
A homogeneous and stoichiometric Sr 3 MgSi 2 O 8 : Eu 2+ (SMSE) phosphor has been prepared by a simple sol‐gel Approach. TEM, SEM, XRD and spectrofluorimeter were used to monitor the structure evolution and optical properties of the phosphor. While TEM/SEM image of as‐calcinated phosphor disclosed a spherical morphology with average size of 0.5 μm. X‐ray diffraction (XRD) of the SMSE powder displayed a pure Sr 3 MgSi 2 O 8 pattern after annealing at 1100°C for 2 h. The luminescence intensity of the sol‐gel‐derived phosphors is much higher in comparison with that of the solid‐state‐derived phosphors.