Synthesis of Blue‐Green Phosphors Sr4Si3O8Cl4:Eu2+ by Gel‐Combustion Method and Their Luminescent Properties | Zendy

Yongqing Zhai | Zendy; Lili Wang | Zendy; Juan Chen | Zendy; Feng Shihua | Zendy

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Synthesis of Blue‐Green Phosphors Sr₄Si₃O₈Cl₄:Eu²⁺ by Gel‐Combustion Method and Their Luminescent Properties

Author(s) -

Yongqing Zhai,

Lili Wang,

Juan Chen,

Feng Shihua

Publication year - 2012

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/683404

Subject(s) - phosphor , orthorhombic crystal system , chemistry , luminescence , analytical chemistry (journal) , calcination , doping , emission spectrum , crystallography , crystal structure , spectral line , optics , materials science , catalysis , physics , optoelectronics , biochemistry , chromatography , astronomy

Sr4Si3O8Cl4:Eu2+ blue-green phosphors were synthesized by the gel-combustion method. The as-synthesized phosphors were analyzed and characterized by X-ray diffraction and fluorescence spectrophotometer. The results indicate that orthorhombic phase Sr4Si3O8Cl4:Eu2+ has been formed after the precursor calcined at 900°C reductive temperature. The excitation spectrum of Sr4Si3O8Cl4:Eu2+ is a broad band in the range of 250 ~ 450 nm and the main peak at 324 nm. The emission spectrum is also a broad band with the main emission peak at about 484 nm, which is ascribed to the typical 4f5d1 to 4f7 transition of Eu2+. Moreover, the effects of the concentration of Eu2+, the reductive temperature, and the doping amount of Mg2+ on luminescent properties were discussed

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