Thermoluminescence characterization of Dy 3+ ‐activated Mg 5 (BO 3 ) 3 F low Z eff  phosphor | Zendy

Wani Javaid A. | Zendy; Dhoble N.S. | Zendy; Dhoble S.J. | Zendy

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Thermoluminescence characterization of Dy 3+ ‐activated Mg 5 (BO 3 ) 3 F low Z eff phosphor

Author(s) -

Wani Javaid A.,

Dhoble N.S.,

Dhoble S.J.

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.2430

Subject(s) - phosphor , thermoluminescence , activation energy , analytical chemistry (journal) , activator (genetics) , doping , materials science , powder diffraction , nuclear chemistry , luminescence , chemistry , crystallography , biochemistry , optoelectronics , chromatography , gene

Thermoluminescence characteristics of Dy 3+ ‐activated Mg 5 (BO 3 ) 3 F low Z eff phosphor are described. The Mg 5 (BO 3 ) 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 Mg 5 (BO 3 ) 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 of Mg 5 (BO 3 ) 3 F:Dy 3+ phosphor was 9.84. Copyright © 2012 John Wiley & Sons, Ltd.

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