Yttria thin films doped with rare earth for applications in radiation detectors and thermoluminescent dosimeters

Montes, Paulo J.R.; Valério, Mário E.G.; Macêdo, M.A.; Cunha, F.; Sasaki, J. M.

doi:10.1016/s0026-2692(03)00047-8

Cited by 32 publications

(11 citation statements)

References 4 publications

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“…Yttrium oxide doped with trivalent rare earth ions is a well known material for display and lamp applications. And, such materials may be investigated for their potential application as TL dosimeters or scintillating detectors [19].…”

Section: Introductionmentioning

confidence: 99%

Luminescence studies of europium doped yttrium oxide nano phosphor

Jayaramaiah¹,

Lakshminarasappa²,

Nagabhushana³

2012

Sensors and Actuators B: Chemical

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a b s t r a c tLuminescence exhibiting europium doped yttrium oxide (Y 2 O 3 :Eu 3+ ) phosphor was prepared by solution combustion method, using disodium ethylene diamine tetra acetic acid (EDTA-Na 2 ) as fuel at ∼350 • C. Powder X-ray diffraction (PXRD) pattern of Y 2 O 3 :Eu 3+ revealed the cubic crystalline phase. The morphology of the samples was studied by scanning electron microscopy (SEM) and was foamy, fluffy and porous in nature. Fourier transformed infrared spectroscopy (FTIR) revealed prominent absorption with peaks at 3415, 1435, 875 and 565 cm −1 . Optical absorption studies showed the energy gap of the synthesized samples to be 5.4-5.5 eV. The photoluminescence (PL) of Y 2 O 3 :Eu 3+ exhibiting emission peak at 611 nm under the excitation of 254 nm. Thermoluminescence of ␥-irradiated Y 2 O 3 :Eu 3+ showed two well resolved TL glows with peaks at 460 and 610 K and they were analyzed by glow curve shape method and the activation energies were found to be 0.421 eV and 1.016 eV respectively.

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Section: Introductionmentioning

confidence: 99%

Luminescence studies of europium doped yttrium oxide nano phosphor

Jayaramaiah¹,

Lakshminarasappa²,

Nagabhushana³

2012

Sensors and Actuators B: Chemical

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“…The development of a new route to growing materials using sol-gel methodology enables the production of nanopowders using lower calcination temperatures and shorter times, when compared to other ceramic routes like solid state reactions [3]. The proteic sol-gel process uses coconut water as starting solvent and a number of previous papers showed that this methodology can be successfully used to produce Y 2 O 3 [4,5], SrFe 12 O 19 [6], BaFe 12 O 19 [7] or ZnO [8] nanopowders, among others. Rare earth doped SrAl 2 O 4 has attracted attention due to its potential applications as a long lasting phosphorescence (LLP) material [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Radioluminescence properties of rare earths doped SrAl2O4 nanopowders

Montes¹,

Valério²

2010

Journal of Luminescence

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“…Binary oxides of yttrium and rare earths are used for their optical [1], dielectric [2,3] and other chemical and physical properties [4][5][6]. Whereas Y 2 O 3 has always the Mn 2 O 3 type cI80 cubic structure, the pure rare earths oxides have structures such as the La 2 O 3 type monoclinic, hP5 hexagonal, the Sm 3 O 4 type cI84 cubic, the Sm 2 O 3 type mC30 monoclinic, and the fluorite (CaF 2 ) type cF8 cubic [7].…”

Section: Introductionmentioning

confidence: 99%