Thermoluminescence of sol–gel derived Y2O3:Nd3+ nanophosphor exposed to 100MeV Si8+ ions and gamma rays

Shivaramu, N.J.; Lakshminarasappa, B.N.; Nagabhushana, K.R.; Singh, Fouran

doi:10.1016/j.jallcom.2015.02.218

Cited by 29 publications

(7 citation statements)

References 46 publications

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“…However, each of these dosimeters is not suitable for all low or high radiation zones. Therefore, continuous efforts is being made by researchers worldwide to develop new materials and to improve the dosimetric properties of existing materials to be used as efficient TLD materials over a wide range of radiation doses …”

Section: Introductionmentioning

confidence: 99%

Versatility of thermoluminescence materials and radiation dosimetry – A review

et al. 2019

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Thermoluminescence (TL) materials exhibit a wide range of applications in different areas such as personal dosimetry, environmental dosimetry, medical research etc.Doping of different rare earth impurities in different hosts is responsible for changing the properties of materials useful for various applications in different fields. These materials can be irradiated by different types of beams such as γ-rays, X-rays, electrons, neutrons etc. Various radiation regimes, as well as their dose-response range, play an important role in thermoluminescence dosimetry. Several TL materials, such as glass, microcrystalline, nanostructured inorganic materials and recently developed materials, are reviewed and described in this article.

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Section: Introductionmentioning

confidence: 99%

Versatility of thermoluminescence materials and radiation dosimetry – A review

et al. 2019

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“…XRD patterns are indexed to the cubic Y 2 O 3 phase with the space group Ia3 according to the standard card (JCPDS No. 88-1040) (16,17). Further it is observed that ion irradiation does not induce additional peaks and there is no change in peak position.…”

Section: Methodsmentioning

confidence: 84%

“…Beyond 0.6 mol% the probability of energy transfer from traps to the luminescence centers decreases and hence the intensity. This effect is known as concentration quenching (17). It indicates that Dy 3+ creates more number of Fcenters initially.…”

Section: Thermoluminescencementioning

confidence: 97%

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Effect of 100 MeV swift Si⁸⁺ions on structural and thermoluminescence properties of Y₂O₃:Dy³⁺nanophosphor

Shivaramu

Lakshminarasappa

Nagabhushana

et al. 2016

Radiation Effects and Defects in Solids

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Nanoparticles of Y 2 O 3 :Dy 3+ were prepared by the solution combustion method. The X-ray diffraction pattern of the 900°C annealed sample shows a cubic structure and the average crystallite size was found to be 31.49 nm. The field emission scanning electron microscopy image of the 900°C annealed sample shows wellseparated spherical shape particles and the average particle size is found to be in a range 40 nm. Pellets of Y 2 O 3 :Dy 3+ were irradiated with 100 MeV swift Si 8+ ions for the fluence range of 3 × 10 11_ 3 × 10 13 ions cm −2 . Pristine Y 2 O 3 :Dy 3+ shows seven Raman modes with peaks at 129, 160, 330, 376, 434, 467 and 590 cm −1 . The intensity of these modes decreases with an increase in ion fluence. A well-resolved thermoluminescence glow with peaks at ∼ 414 K (T m1 ) and ∼ 614 K (T m2 ) were observed in Si 8+ ion-irradiated samples. It is found that glow peak intensity at 414 K increases with an increase in the dopant concentration up to 0.6 mol% and then decreases with an increase in dopant concentration. The high-temperature glow peak (614 K) intensity linearly increases with an increase in ion fluence. The broad TL glow curves were deconvoluted using the glow curve deconvoluted method and kinetic parameters were calculated using the general order kinetic equation. ARTICLE HISTORY

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“…increase in the luminescence efficiency at higher dose levels [28]. The presence two kinds of glow peaks at 411 K and 577 K indicate that two kinds of trapping centers (shallow/deep) are created due to γ-irradiation [29,30] …”

Section: Thermoluminescencementioning

confidence: 99%

Effect of cobalt doping on structural, thermo and photoluminescent properties of ZnO nanopowders

Pushpa

Kokila

2017

Journal of Luminescence

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A B S T R A C TNanocrystalline cobalt doped zinc oxide nanoparticles are synthesized by solution combustion method using sucrose as a fuel. The synthesized samples are characterized by XRD, SEM, FTIR, Micro-Raman, UV-Visible techniques. XRD studies confirm that both undoped and Co doped samples exhibit hexagonal wurtzite structure with crystallite size~30 nm for undoped Photoluminescence (PL) of all the samples shows violet emission peaks at 361, 398 nm, blue emission peaks at 468,492 nm and weak green emission peaks at 517 and 567 nm. PL intensity is found to decrease with the increase in Co 2+ doping. Thermoluminescence (TL) glow curves of Co doped ZnO nano crystalline phosphors are γ-irradiated in the dose range 0.1-5.0 kGy. Prominent glow peaks at 412 and 575 K are observed for all the exposed doses without changing its glow peak structure. TL intensity increases linearly with γ-dose up to 4 kGy. The Kinetic parameters of TL glow are calculated by deconvolution technique. Activation energy and frequency factor are found to be 1.35 eV and 2.10×10 11 s −1 respectively.

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Thermoluminescence of sol–gel derived Y2O3:Nd3+ nanophosphor exposed to 100MeV Si8+ ions and gamma rays

Cited by 29 publications

References 46 publications

Versatility of thermoluminescence materials and radiation dosimetry – A review

Versatility of thermoluminescence materials and radiation dosimetry – A review

Effect of 100 MeV swift Si⁸⁺ions on structural and thermoluminescence properties of Y₂O₃:Dy³⁺nanophosphor

Effect of cobalt doping on structural, thermo and photoluminescent properties of ZnO nanopowders

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Thermoluminescence of sol–gel derived Y2O3:Nd3+ nanophosphor exposed to 100MeV Si8+ ions and gamma rays

Cited by 29 publications

References 46 publications

Versatility of thermoluminescence materials and radiation dosimetry – A review

Versatility of thermoluminescence materials and radiation dosimetry – A review

Effect of 100 MeV swift Si8+ions on structural and thermoluminescence properties of Y2O3:Dy3+nanophosphor

Effect of cobalt doping on structural, thermo and photoluminescent properties of ZnO nanopowders

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Effect of 100 MeV swift Si⁸⁺ions on structural and thermoluminescence properties of Y₂O₃:Dy³⁺nanophosphor