Abstract
Luminescence composite was fabricated by combining red organic fluorescent pigment on to SrAl2O4:Eu2+, Dy3+ particles. X-ray diffraction (XRD) patterns, PR-305 afterglow brightness tester and Fluorescence spectrophotometer (HITACHI 650-60, Japan) as well as PR–650 Spectra Scan colorimetric were used to characterize the properties of the luminescent composite. The emission behavior was evaluated by Fluorescence Spectrophotometric analysis and the results demonstrated that the emission spectra of samples had a red shift under visible light (λ=520 nm) excitation. The emission intensity of the red organic fluorescent pigment-doped hybrid increased with the increase of red organic fluorescent pigment concentration, but the afterglow brightness reduced. Furthermore, the emission colors of SrAl2O4:Eu2+,Dy3+/ red organic fluorescent pigment also can be tuned from yellow to orange-red easily by changing the doping concentrations(N) of red organic fluorescent pigment..
Keywords
SrAl2O4:Eu2+, Dy3+, Red organic fluorescent pigment, Luminescent composite, Phosphors.
Citation
YANAN ZHU, MINGQIAO GE, Preparation and luminescence properties of a new material SrAl2O4:Eu2+, Dy3+/red organic fluorescent pigment, Optoelectronics and Advanced Materials - Rapid Communications, 7, 11-12, November-December 2013, pp.840-844 (2013).
Submitted at: May 29, 2013
Accepted at: Nov. 7, 2013