Experimental and theoretical study of mechanoluminescence and lyoluminescence of Li3 PO4 : RE (RE = Dy and Tb) phosphors.
Li3 PO4 phosphors prepared by solid-state diffusion technique and lyoluminescence (LL) as well as mechanoluminescence (ML) studies are reported. Dy- and Tb-activated phosphors show dosimetric characteristics using LL and ML techniques. The energy levels and hence trapping and detrapping of charge carriers in the material can be studied using ML. Li3 PO4 phosphor can be used in the dosimetric applications for ionizing radiation. By using the LL technique, the LL characteristics of Li3 PO4 may be useful for high radiation doses. We also report a more detailed theoretical understanding of the mechanism of LL and ML.
Department of Physics, C.M.D.P.G. College Bilaspur, Chattisgarh, 495001, India.
A K
AK
Sahu
Monali R
MR
Kadukar
P S
PS
Chowdhary
V
V
Nayar
S J
SJ
Dhoble
D003460:Crystallization; D004058:Diffusion; D004307:Dose-Response Relationship, Radiation; D004419:Dysprosium / Q000737:chemistry*; D005720:Gamma Rays; D018020:Lithium Compounds / Q000737:chemistry; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods; D008962:Models, Theoretical; D012997:Solvents / Q000737:chemistry; D013725:Terbium / Q000737:chemistry*; D013819:Thermoluminescent Dosimetry
D018020:Lithium Compounds; D012997:Solvents; D013725:Terbium; D004419:Dysprosium
Li3PO4 phosphor; ionizing radiation dosimeter; lyoluminescence; mechanoluminescence