Defect chemistry and VUV optical properties of the BaMgAl10O17:Eu2+–Ba0.75Al11O17.25:Eu2+ solid solution

Pike, Valerie; Patraw, Samuel; Diaz, Anthony L.; DeBoer, Barry G.

doi:10.1016/s0022-4596(03)00111-7

Cited by 58 publications

(64 citation statements)

References 20 publications

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“…BAM crystallizes in ␤-alumina structure in space group P6 3 /mmc [16][17][18]. The structure consists of characteristic thick spinel blocks of MgAl 10 O 16 separated by thin BaO layers.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic properties of sintered BaMgAl10O17:Eu2+ (BAM) translucent pellets

Zych

Goetz²,

Harrit

et al. 2004

Journal of Alloys and Compounds

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“…BAM crystallizes in ␤-alumina structure in space group P6 3 /mmc [16][17][18]. The structure consists of characteristic thick spinel blocks of MgAl 10 O 16 separated by thin BaO layers.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic properties of sintered BaMgAl10O17:Eu2+ (BAM) translucent pellets

Zych

Goetz²,

Harrit

et al. 2004

Journal of Alloys and Compounds

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“…The Ba 2+ site is similar to the BR site, whereas the interstitial positions are at the a-BR and mO sites [21]. The 5d-excitation of the Eu 2+ ions depends strongly on the crystal field strength around the Eu 2+ ions [22,23]. Eu 2+ ions occupy the I, Π, and III sites corresponding to peaks at 435,460, and 490 nm (inset of Fig 3.10) and represents the BR, a-BR, and mO sites.…”

Section: Resultsmentioning

confidence: 99%

Rare‐earth Based Insulating Nanocrystals: Improved Luminescent Nanophosphors for Plasma Display Panels

Sharma

Pandey

2012

Intelligent Nanomaterials

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The plasma display panel (PDP) is largely attributed as a big screen flat display panel because of its fast response, wide viewing angle, low energy consumption, and some other advantages. The performance of commercially available PDP phosphors is not sufficient for practical applications, mainly due to instability in blue phosphors, poor color chromaticity in red phosphors, long decay time in green phosphors, and their low brightness. From the PDP point of view, the phosphor should have good luminescence efficiency as well as high color purity. Additionally, in PDPs, phosphors are excited by vacuum ultra violet (VUV) radiation, especially by 147 and 173 nm radiations from inert gas plasma, which shows the unique requirement for PDP phosphors -they can only be excited by the higher VUV excitations. The luminous efficiency and lifetime of plasma display panels (PDPs) are directly related to the performance of phosphors used in PDPs. As a result, higher efficiency, higher stability against high temperature processes, and a long lifetime along with good color chromaticity against vacuum-ultraviolet (VUV) radiation are major concerns in selecting suitable phosphors for PDPs. In order to achieve the same objectives, the present book chapter looks inside the development of the rare-earth based insulating nanocrystals to improve the performance of PDPs. These nanophosphors were studied for their luminescence properties under VUV excitations in view of their luminous efficiency, lifetime, higher stability against time, and high temperature processes as these properties

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“…This relates to the different sites of Eu 2+ occupied in BAM. By Gaussian fitting the VUV emission spectrum (as shown in the inset of Figure 9), three peaks were found and these peaks located at 446 nm, 477 nm and 517 nm, corresponding to the emission of Eu 2+ in the sites of BR, a-BR and spinel layer [17][18] . With the temperature increasing from 1250℃ to 1300℃, the emission intensity of these nano-phosphors by 147 nm excitation enhanced about 22%.…”

Section: Bamgal 10 O 17 : Eu 2+ Blue Nano-phosphormentioning

confidence: 99%

Synthesis and Vacuum Ultraviolet Spectral Properties of Nano-scaled Phosphors

Wang

et al. 2010

Int.J.Soc.Mater.Eng.Resour.

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, nano-sheets was obtained by solvent-thermal process, which reached 78.8% of the commercial red phosphor on emission intensity and exhibited better color purity than the latter. For ZnSiO 4 : Mn 2+ , different morphologies were obtained by hydrothermal method with varying ratio of CTAB to TEOS, among which the nano-spheres presented the strongest emission intensity and reached 86% of that of the commercial green phosphor. For BaMgAl 10 O 17 : Eu 2+ , nano-rods were acquired using sol-gel process, which exhibited 78.15% of the commercial blue phosphor on emission intensity and the low y value of color coordinates, which indicated that the nano-rods were efficient for restricting the deteriorate during application.

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Defect chemistry and VUV optical properties of the BaMgAl10O17:Eu2+–Ba0.75Al11O17.25:Eu2+ solid solution

Cited by 58 publications

References 20 publications

Spectroscopic properties of sintered BaMgAl10O17:Eu2+ (BAM) translucent pellets

Spectroscopic properties of sintered BaMgAl10O17:Eu2+ (BAM) translucent pellets

Rare‐earth Based Insulating Nanocrystals: Improved Luminescent Nanophosphors for Plasma Display Panels

Synthesis and Vacuum Ultraviolet Spectral Properties of Nano-scaled Phosphors

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