Premium
The red luminescence characteristics of fully concentrated Eu‐based phosphor EuBaB 9 O 16
Author(s) -
Lin Hao,
Huang Yanlin,
Seo Hyo Jin
Publication year - 2010
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200925445
Subject(s) - phosphor , luminescence , photoluminescence , analytical chemistry (journal) , excited state , electric dipole transition , magnetic dipole transition , crystallite , materials science , excitation , scanning electron microscope , ion , emission spectrum , dipole , chemistry , spectral line , atomic physics , optoelectronics , magnetic dipole , physics , organic chemistry , chromatography , quantum mechanics , astronomy , metallurgy , composite material
The red phosphor EuBaB 9 O 16 was prepared by the conventional solid‐state reaction method. The crystallite phase of the phosphor was observed by X‐ray diffraction (XRD) patterns. Scanning electron micrographs were obtained to study the morphologic features and the particle size of the phosphor. The photoluminescence (PL) excitation and emission spectra, temperature dependence of luminescence intensity and the decay curves were investigated. The phosphor, when excited with near‐UV wavelength radiation, exhibited an intense red luminescence. The characteristic emission of Eu 3+ ions corresponding to the electric dipole transition 5 D 0 → 7 F 2 was located at 613 nm under 254‐ and 365‐nm excitation. Its room temperature fluorescent decay profile exhibits a single‐exponent shape with a decay time of 2.03 ms. The color coordinates were also discussed. In addition, the PL properties of EuBaB 9 O 16 were compared with those of La 0.9 Eu 0.1 BaB 9 O 16 and Gd 0.9 Eu 0.1 BaB 9 O 16 .