A NEW PHOSPHOR FOR FLYING-SPOT CATHODE-RAY TUBES FOR COLOR TELEVISION: YELLOW-EMITTING Y3Al5O12–Ce3+

Blasse, G.; Bril, A.

doi:10.1063/1.1755025

Cited by 477 publications

(293 citation statements)

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“…Despite the fact that this phosphor material was proposed almost 45 years ago [1], and that it has been very thoroughly investigated from the point of view of optical spectroscopy [2][3][4][5][6] and electronic structure [6,7], to the best of our knowledge an experimental investigation of the local structure of the impurity in the garnet structure has never been reported so far. For this reason, we have found it interesting to undertake a detailed study of the location of the Ce3+ ions in YAG using Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy, with the aim of gaining more insight on the spectroscopic behaviour of this valuable material, and to compare the experimental results with the theoretical ones [7,8].…”

Section: Introductionmentioning

confidence: 99%

Local structure of the Ce3+ ion in the yellow emitting phosphor YAG:Ce

Ghigna

Ronda

et al. 2011

Optical Materials

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Section: Introductionmentioning

confidence: 99%

Local structure of the Ce3+ ion in the yellow emitting phosphor YAG:Ce

Ghigna

Ronda

et al. 2011

Optical Materials

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“…[21] The blue radiation is strongly absorbed by the allowed 4f 5d transition of Ce 3+ , leading to a yellow 5d 4f (to the spin-orbit split 2 F 7/2 and 2 F 5/2 levels) emission band. [22] The coloration of titanates was adscribed to charge-transfer transitions in which an electron is transferred from the metal ion to the empty 3d orbitals of the Ti 4+ ion. By other hand, the presence of Ce(IV) ions can generate charge transfer bands which are also related to the colour mechanism, giving in this case a yellow coloration.…”

Section: +mentioning

confidence: 99%

Sol–Gel Synthesis of Tunable Cerium Titanate Materials

et al. 2008

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Cerium titanate structures present a high technological interest because of their optical and catalytic properties. This work reports the synthesis of these materials by a sol–gel methodology that allows mixed oxides with TiIV/CeIII, TiIV/CeIV or TiIV/CeIII–CeIV species to be obtained. Crystallization of CeO2–TiO2 mixed oxides and Ce2Ti2O7 pyrochlore phase was corroborated by XRD and Raman spectroscopy. Magnetic and EPR measurements were performed in order to clarify the oxidation state of the cerium ions in the system as a result of the easy oxidation of CeIII. The firing atmosphere is crucial for the CeIII/CeIV ratio, which is responsible for the different structure, but it also affects the colouration (yellow, green, brown). This methodology offers the possibility to modulate the Ce3+/Ce4+ content and particle sizes providing more ecological coloured pigments based on rare earth elements that could be interesting materials for advanced applications in catalysis.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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“…The XRL spectra consist of two luminescence bands attributed to 2 D→ 2 F 7/2 , and 2 D→ 2 F 5/2 transitions in Ce 3+ ions [23]. The maximum intensity of luminescence has the sample with 1 at.% of Ce.…”

Section: Resultsmentioning

confidence: 99%

Ce:YAG transparent ceramics based on nanopowders produced by laser ablation method: Fabrication, optical and scintillation properties

Осипов¹,

Шитов²,

Lukyashin³

et al. 2017

Nanosystems: Phys. Chem. Math.

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Transparent Ce:YAG ceramics were fabricated by the solid-state reaction method with an additional round of pre-calcining using nanopowders of Ce 2x Y 2−2x O 3 (x = 0.001, 0.01, 0.03 and 0.05) and Al 2 O 3 synthesized by laser ablation. Additional pre-calcining of the nanopowder mixture in air was used to partially transform the oxides into the YAG phase before sintering. The transmittance of the obtained 2-mm-thick Ce:YAG ceramics was over 81 % in the wavelength range of 500-900 nm. The average volumes of the scattering centers in the obtained ceramics were evaluated by direct count method to be 34, 74, 53, 50 ppm for 0.1, 1, 3 and 5 % Ce doping concentration, respectively. The absolute light yields, energy resolutions under 662 keV gamma ray, and decay curves of scintillations of the fabricated Ce:YAG samples were measured and compared to those of Ce:YAG and CsI:Tl single crystals.

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A NEW PHOSPHOR FOR FLYING-SPOT CATHODE-RAY TUBES FOR COLOR TELEVISION: YELLOW-EMITTING Y3Al5O12–Ce3+

Abstract: The fluorescence of Y3Al5O12–Ce3+ under cathode-ray excitation consists of an emission band peaking at 550 nm. The decay time is 0.07–0.08 μsec. In view of these properties this phosphor is very suitable for flying-spot cathoderay tubes for color television.

Cited by 477 publications

References 1 publication

Local structure of the Ce3+ ion in the yellow emitting phosphor YAG:Ce

Local structure of the Ce3+ ion in the yellow emitting phosphor YAG:Ce

Sol–Gel Synthesis of Tunable Cerium Titanate Materials

Ce:YAG transparent ceramics based on nanopowders produced by laser ablation method: Fabrication, optical and scintillation properties

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