Near-ultraviolet light excited deep blue-emitting phosphor for solid-state lighting

BaMgAl 10O 17:Eu 2+ (BAM) is one kind of commercial blue phosphor in fluorescent lamps, because of its efficient blue emission. A serial of phosphors BaMgAl 10O 17:0.1Eu 2+ doped different H 3BO 3 concentration were prepared by solid-state reaction technique, and their photoluminescent properties we...

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Bibliographic Details
Published in:Journal of alloys and compounds 2009-08, Vol.482 (1), p.437-439
Main Authors: Wang, Z.L., Cheah, K.W., Tam, H.L., Gong, M.L.
Format: Article
Language:English
Subjects:
Blue phosphor
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Light-emitting diodes
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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Summary:BaMgAl 10O 17:Eu 2+ (BAM) is one kind of commercial blue phosphor in fluorescent lamps, because of its efficient blue emission. A serial of phosphors BaMgAl 10O 17:0.1Eu 2+ doped different H 3BO 3 concentration were prepared by solid-state reaction technique, and their photoluminescent properties were investigated. The introduction of H 3BO 3 broadens the excitation band of the phosphor BAM around 400 nm and enhances the emission intensity under 400 nm light excitation. The emission of the phosphor BAM doped with 6% H 3BO 3 has optimum blue emission, with good CIE (Commission Internationale de l’Eclairage, International Commission on Illumination) chromaticity coordinates x = 0.151, y = 0.058. Hence, the phosphor can be applied in fabrication of near-UV LED excited white light-emitting diode (LED).
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2009.04.038