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Chemical Synthesis of a Blue‐Emitting NaSr 1− X PO 4 :Eu X Phosphor Powder
Author(s) -
Tung YiLing,
Jean JauHo
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03099.x
Subject(s) - phosphor , luminescence , materials science , analytical chemistry (journal) , ultraviolet , emission intensity , thermal decomposition , metal , nuclear chemistry , ultraviolet light , mineralogy , chemistry , optoelectronics , metallurgy , organic chemistry , chromatography
Pure, crystalline, blue‐emitting NaSr 1− X PO 4 :Eu X with X =0–0.06 phosphor powder is formed by the thermal decomposition of a metal–nitrate–citrate–polyethylene glycol complex at 1300°C in a reducing atmosphere. The resulting phosphor powder emits blue luminescence with a peak intensity at 428 nm under ultraviolet excitation at 374 nm. Compared with the powder synthesized by a conventional solid‐state reaction, the chemically prepared powder exhibits a higher emission intensity and requires a lower Eu content to reach the maximum intensity.