Thermoluminescence characterization of Dy(3+) -activated Mg₅ (BO₃ )₃ F low Z(eff) phosphor.
Thermoluminescence characteristics of Dy(3+) -activated Mg₅ (BO₃ )₃ F low Z(eff) phosphor are described. The Mg₅ (BO₃ )₃ F phosphor doped with Dy(3+) as activator was prepared by the modified solid-state reaction. Formation of the compound was confirmed by use of X-ray powder diffraction. The X-ray powder diffraction pattern of the as-prepared compound shows a good match with the available JCPDS data. The γ-irradiated Mg₅ (BO₃ )₃ F:Dy(3+) phosphor shows a simple glow curve peaking at about 148°C indicating that only one type of trap is being activated within a particular temperature range. The kinetic parameters, including activation energy and frequency factor were determined using Chen's method. The activation energy and frequency factors were 0.75 eV and 4.508 × 10(9) /s respectively. The Z(eff) ofMg₅ (BO₃ )₃ F:Dy(3+) phosphor was 9.84.
Department of Physics, R.T.M. Nagpur University, Nagpur, 440033, India.
Javaid A
JA
Wani
N S
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Dhoble
S J
SJ
Dhoble
D001895:Boron / Q000737:chemistry*; D004419:Dysprosium / Q000737:chemistry*; D005461:Fluorine / Q000737:chemistry*; D049449:Luminescence; D008274:Magnesium / Q000737:chemistry*; D008854:Microscopy, Electron; D010100:Oxygen / Q000737:chemistry*; D033362:Powder Diffraction; D013696:Temperature
D004419:Dysprosium; D005461:Fluorine; D008274:Magnesium; D001895:Boron; D010100:Oxygen