Premium
Luminescence in Li 3 Al 2 (PO 4 ) 3 :Eu 2+
Author(s) -
Shinde K. N.,
Park K.
Publication year - 2012
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2427
Subject(s) - phosphor , luminescence , photoluminescence , dopant , analytical chemistry (journal) , excited state , scanning electron microscope , materials science , excitation , ion , solid state lighting , chemistry , light emitting diode , doping , optoelectronics , atomic physics , physics , chromatography , composite material , organic chemistry , quantum mechanics
A series of efficient Li 3 Al 2 (PO 4 ) 3 :Eu 2+ novel phosphors were synthesized by the facile combustion method. The effects of dopant on the luminescence behavior of Li 3 Al 2 (PO 4 ) 3 phosphor were also investigated. The phosphors were characterized by X‐ray diffraction, field emission scanning electron microscope and photoluminescence techniques. The result shows that all samples can be excited efficiently by near‐ultraviolet excitation under 310 nm. The emission was observed for Li 3 Al 2 (PO 4 ) 3 :Eu 2+ phosphor at 425 nm, which corresponded to the d → f transition. The concentration quenching of Eu 2+ was observed in Li 3 Al 2 (PO 4 ) 3 :Eu 2+ when the Eu concentration was at 0.5 mol%. The prepared powders exhibited intense blue emission at the 425 nm owing to the Eu 2+ ion by Hg‐free excitation at 310 nm (i.e., solid‐state lighting excitation). Consequently, the availability of such a phosphor will significantly help in the development of blue‐emitting solid‐state lighting applications. Copyright © 2012 John Wiley & Sons, Ltd.