Luminescence of pure yttria

Осипов, В. В.; Rasuleva, A. V.; Solomonov, V. I.

doi:10.1134/s0030400x08100068

Cited by 33 publications

(10 citation statements)

References 11 publications

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“…Actually, the mentioned luminescence closely resembles that observed in Y 2 O 3 powders, ceramics and films [61,62], and attributed to Y 3+ − O 2− donoracceptor pairs and oxygen vacancies. Hence, this might be also the origin of the green emission observed in the present work.…”

Section: Photoluminescence Studysupporting

confidence: 61%

Comparative study of Y0.9Er0.1V1−xPxO4 nanophosphors with x = 0, 0.1, 0.5, 0.9 and 1 prepared by sol-gel and hydrothermal processes

Alcaraz

Isasi

Dı́az-Guerra

2016

Journal of Alloys and Compounds

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Section: Photoluminescence Studysupporting

confidence: 61%

Comparative study of Y0.9Er0.1V1−xPxO4 nanophosphors with x = 0, 0.1, 0.5, 0.9 and 1 prepared by sol-gel and hydrothermal processes

Alcaraz

Isasi

Dı́az-Guerra

2016

Journal of Alloys and Compounds

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“…He concluded that, the luminescence bands with peaks at 365 and 428 nm might be due to the presence of oxygen vacancies related to radiative recombination. Osipov and coworkers studied luminescence of pure yttria [37]. They reported cathodoluminescence with peaks in the range 435-510 nm and the emission is ascribed due to recombination of associative Y 3+ -O 2− donor acceptor pair.…”

Section: Uv-visible Spectramentioning

confidence: 99%

Synthesis characterization and luminescence studies of gamma irradiated nanocrystalline yttrium oxide

Shivaramu

Lakshminarasappa

Nagabhushana

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Nanocrystalline Y 2 O 3 is synthesized by solution combustion technique using urea and glycine as fuels. X-ray diffraction (XRD) pattern of as prepared sample shows amorphous nature while annealed samples show cubic nature. The average crystallite size is calculated using Scherrer's formula and is found to be in the range 14-30 nm for samples synthesized using urea and 15-20 nm for samples synthesized using glycine respectively. Field emission scanning electron microscopy (FE-SEM) image of 1173 K annealed Y 2 O 3 samples show well separated spherical shape particles and the average particle size is found to be in the range 28-35 nm. Fourier transformed infrared (FTIR) and Raman spectroscopy reveals a stretching of Y-O bond. Electron spin resonance (ESR) shows V − center, O 2 − and Y 2+ defects. A broad photoluminescence (PL) emission with peak at~386 nm is observed when the sample is excited with 252 nm. Thermoluminescence (TL) properties of γ-irradiated Y 2 O 3 nanopowder are studied at a heating rate of 5 K s −1 . The samples prepared by using urea show a prominent and well resolved peak at~383 K and a weak one at~570 K. It is also found that TL glow peak intensity (I m1 ) at~383 K increases with increase in γ-dose up to~6.0 kGy and then decreases with increase in dose. However, glycine used Y 2 O 3 shows a prominent TL glow with peaks at 396 K and 590 K. Among the fuels, urea used Y 2 O 3 shows simple and well resolved TL glows. This might be due to fuel and hence particle size effect. The kinetic parameters are calculated by Chen's glow curve peak shape method and results are discussed in detail.

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“…He concluded that the luminescence bands with maxima at 365 and 428 nm are due to presence of oxygen vacancies related to radiative recombination. Osipov and coworkers studied luminescence of pure yttria (Osipov et al, 2008). They reported cathodoluminescence spectra with peak at 465 nm and the emission is ascribed to recombination of associative Y 3þ eO 2À donor acceptor pair.…”

Section: Resultsmentioning

confidence: 99%

Luminescence studies of 100 MeV Si8+ ion irradiated nanocrystalline Y2O3

Shivaramu

Lakshminarasappa

Nagabhushana

et al. 2014

Radiation Measurements

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h i g h l i g h t sCombustion synthesized Y 2 O 3 revealed cubic structure. 100 MeV Si 8þ ions doesn't induce phase transition in combustion synthesized Y 2 O 3 . The prominent TL glow peak intensity increases up to 1 Â 10 11 ions cm À2 . The experimental TL glow curves revealed second order kinetics. shows a prominent well resolved TL glow with peak at w403 K (T m1 ) and a weak TL peak at 461 K (T m2 ). TL intensity in the present work increases up to about 1 Â 10 11 ions cm À2 there after it decreases. The TL kinetic parameters are calculated by glow peak shape method. Activation energy and frequency factors are found to in the range of w1.6 eV and w10 18 s À1 respectively. a r t i c l e i n f o

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Luminescence of pure yttria

Cited by 33 publications

References 11 publications

Comparative study of Y0.9Er0.1V1−xPxO4 nanophosphors with x = 0, 0.1, 0.5, 0.9 and 1 prepared by sol-gel and hydrothermal processes

Comparative study of Y0.9Er0.1V1−xPxO4 nanophosphors with x = 0, 0.1, 0.5, 0.9 and 1 prepared by sol-gel and hydrothermal processes

Synthesis characterization and luminescence studies of gamma irradiated nanocrystalline yttrium oxide

Luminescence studies of 100 MeV Si8+ ion irradiated nanocrystalline Y2O3

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