Thermoluminescence study and evaluation of trapping parameters CaTiO3: RE (RE=Eu3+, Dy3+) phosphor for TLD applications

Kadam, Abhijeet R.; Mishra, G. C.; Dhoble, S.J.

doi:10.1016/j.molstruc.2020.129129

Cited by 45 publications

(20 citation statements)

References 22 publications

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“…At higher Eu 3+ concentrations, PL intensity decreased due to the concentration quenching effect. [ 30,31 ] Insignificant energy transfer by excited ions to other ions caused an increase in PL intensity of 1 mol% (i.e. cross‐relaxation between Eu 3+ ions).…”

Section: Resultsmentioning

confidence: 99%

Enhanced photoluminescence in RE (Eu³⁺, Ce³⁺ and Sm³⁺)‐activated Ca₁₀(PO₄)F₂ phosphors by double or triple ionized mineral doping: a comparative study

et al. 2020

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In this work, RE3+ (Eu, Ce and Sm)‐activated Ca10(PO4)6F2 (fluorapatite) phosphors were synthesized by doping with different apatite minerals (SO4, VO4, WO4) using a solid‐state diffusion method. Optical and structural characterizations were performed using X‐ray diffraction (XRD), Fourier transform infrared spectroscopy, and photoluminescence (PL) spectroscopy. XRD characterization showed the crystalline nature of the phosphor. PL properties were investigated under ultraviolet light excitation for all three rare earths. CIE chromaticity revealed the colour emitted in the visible region. Luminescence intensity was enhanced considerably by tuning the host matrices after core–shell formation by substitution with other ions producing promising candidates for white light‐emitting diode materials.

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Section: Resultsmentioning

confidence: 99%

Enhanced photoluminescence in RE (Eu³⁺, Ce³⁺ and Sm³⁺)‐activated Ca₁₀(PO₄)F₂ phosphors by double or triple ionized mineral doping: a comparative study

et al. 2020

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“…Chen’s peak shape method, [ 38,39 ] the repeated initial rise (RIR) method, [ 40,41 ] and Ilich’s method. [ 42,43 ]…”

Section: Resultsmentioning

confidence: 99%

Investigation of thermoluminescence response and trapping parameters of natural barite samples from Dongargaon mine, India

et al. 2020

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Dosimetry is a technique that quantitatively measures the ionizing radiation absorbed by matter. The present study was conducted on the barites from a mine at Dongargaon in Central India. Morphological and structural analysis of proposed sample was carried out using X‐ray diffraction and standard error of the mean. Thermal analysis and chemical composition of the proposed sample were carried out using thermogravimetric analysis and differential thermal analysis, and electron probe microanalysis. Thermoluminescence (TL) studies on a natural barite sample were performed using a Nucleonix TL1009I TL reader following sample irradiation with γ‐rays generated from a 60Co irradiation source. A broad TL glow curve was observed after TL study that was then deconvoluted using TLanal deconvolution software. Trapping parameters from the sample such as activation energy (E), order of kinetics (b), and frequency factor (s) were calculated using Chen’s peak shape method, the initial rise method, and Ilich’s method. The results indicated that the natural barite sample could be used in high‐dose TL dosimetric applications in various fields.

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“…The different dose rate study shows the maximum intensity of the irradiated phosphor at 456 Gy observed at a peak centered at 200 C as displayed in Figure 6 which is useful in dosimetric properties. [22][23][24][25] Moreover, the TL glow curve intensity has been increasing linearly with increasing exposure rate. The linearity of the dose response exposure was determined by the slope of the linear fitted curve.…”

Section: The Thermoluminescence Studiesmentioning

confidence: 94%

“…In this method, 15% of the initial rise part of the TL glow curve is used to determine the critical temperature T c . Formula for the estimation of activation energy by the Ilich method is reported by Kadam et al [24,26] Table 6 shows the summary of trapping parameters calculated by the Ilich method and the TL glow curve used in the Ilich method are displayed in Figure 11.…”

Section: Ilich Methodsmentioning

confidence: 99%

Tailoring of thermoluminescent properties and assessment of trapping parameters of natural fluorite samples from Dogargaon fluorite mines, India

et al. 2021

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Mineral fluorite or fluorspar (CaF 2 ) can host significant quantities of trivalent REE 3+ (rare earth element) by substitution with divalent Ca 2+ . The fluorites associated with carbonatites are often REE-rich compared to those derived from sedimentary, hydrothermal, or Mississippi Valley-type (MVT) fluorites. The naturally occurring fluorites have several industrial applications one of which is for luminescence. Whether or not REE enriched, the fluorite makes an ideal host for REEs, which are very important phosphors. The naturally occurring fluorites are available in sufficient quantities to cater to the industrial demand. Investigations have been carried out on the fluorites from active fluorite mines at Dongargaon in central India. Thermoluminescence behavior of a natural fluorite sample was investigated using a Nucleonix TL 1009I thermoluminescence reader. Multiple traps formed in the broad thermoluminescent (TL) glow curve were found by TL anal deconvolution software. Trapping parameters for all multiple traps formed on deconvoluting broad TL glow curve were found by different methods like Initial rise method, Chen's Peak shape method and Ilich method.

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Thermoluminescence study and evaluation of trapping parameters CaTiO3: RE (RE=Eu3+, Dy3+) phosphor for TLD applications

Cited by 45 publications

References 22 publications

Enhanced photoluminescence in RE (Eu³⁺, Ce³⁺ and Sm³⁺)‐activated Ca₁₀(PO₄)F₂ phosphors by double or triple ionized mineral doping: a comparative study

Enhanced photoluminescence in RE (Eu³⁺, Ce³⁺ and Sm³⁺)‐activated Ca₁₀(PO₄)F₂ phosphors by double or triple ionized mineral doping: a comparative study

Investigation of thermoluminescence response and trapping parameters of natural barite samples from Dongargaon mine, India

Tailoring of thermoluminescent properties and assessment of trapping parameters of natural fluorite samples from Dogargaon fluorite mines, India

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Thermoluminescence study and evaluation of trapping parameters CaTiO3: RE (RE=Eu3+, Dy3+) phosphor for TLD applications

Cited by 45 publications

References 22 publications

Enhanced photoluminescence in RE (Eu3+, Ce3+ and Sm3+)‐activated Ca10(PO4)F2 phosphors by double or triple ionized mineral doping: a comparative study

Enhanced photoluminescence in RE (Eu3+, Ce3+ and Sm3+)‐activated Ca10(PO4)F2 phosphors by double or triple ionized mineral doping: a comparative study

Investigation of thermoluminescence response and trapping parameters of natural barite samples from Dongargaon mine, India

Tailoring of thermoluminescent properties and assessment of trapping parameters of natural fluorite samples from Dogargaon fluorite mines, India

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Enhanced photoluminescence in RE (Eu³⁺, Ce³⁺ and Sm³⁺)‐activated Ca₁₀(PO₄)F₂ phosphors by double or triple ionized mineral doping: a comparative study

Enhanced photoluminescence in RE (Eu³⁺, Ce³⁺ and Sm³⁺)‐activated Ca₁₀(PO₄)F₂ phosphors by double or triple ionized mineral doping: a comparative study