Effect of annealing in hydrogen atmosphere on the photoluminescence properties of phosphor-in- glass in tellurate glass

Zhou, Heyu; Zou, Jun; Li, Yang; Wu, Wenjuan; Shi, Mingming; Yang, Bobo; Wang, Ziming

doi:10.1016/j.jnoncrysol.2017.09.019

Cited by 24 publications

(7 citation statements)

References 19 publications

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“…Figure 14 shows the second example of four-peak Ce3d spectra. They arise from oxidic Ce 3+ -doped, tellurate-based phosphor-in-glass materials reported by Zhou et al [182]. The authors assume that all four spectra involve Ce 4+ -related peaks at BEs 884.4 ± 0.4 eV (5/2) and 898.9 ± 1.2 eV (3/2), as well as Ce 3+ -related peaks at BEs 888.7 ± 0.5 eV (5/2) and 903.2 ± 1.0 eV (3/2) [182].…”

Section: Four Peaksmentioning

confidence: 99%

“…They arise from oxidic Ce 3+ -doped, tellurate-based phosphor-in-glass materials reported by Zhou et al [182]. The authors assume that all four spectra involve Ce 4+ -related peaks at BEs 884.4 ± 0.4 eV (5/2) and 898.9 ± 1.2 eV (3/2), as well as Ce 3+ -related peaks at BEs 888.7 ± 0.5 eV (5/2) and 903.2 ± 1.0 eV (3/2) [182]. Both the number of peaks and their BEs are hardly reminiscent of those arising from Ce 4+ -related Ce3d peaks and Ce 3+ -related Ce3d peaks of cerium oxides, see table 1.…”

Section: Four Peaksmentioning

confidence: 99%

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Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce₂O₃ and CeO₂

Paparazzo¹

2018

J. Phys.: Condens. Matter

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X-ray photoemission spectroscopy (XPS) work on CeO and CeO oxides has been an active topic of research over the past four decades or so. Such research aimed to find the reasons for the unusual complexity of Ce3d spectra of the two oxides, and it studied catalytic properties of materials that contained them. I discuss how theoretical and experimental studies exploited the diagnostic potential of XPS to reach our current knowledge of the electronic properties of the two oxides. A part of these studies provided peak-fitting guidelines to resolve Ce3d spectra produced by the co-existence of both oxides into the individual spectral components arising from Ce and Ce ions. Basing myself on the analysis of several peak-fittings of Ce3d spectra carried out in studies of the catalytic applications of CeO-based materials, I show that more often than not they largely ignore the findings of theoretical, experimental, and methodological XPS work. I discuss typical problems that flaw Ce3d peak-fittings, and how they affect their accuracy. I argue that, although several XPS studies do list primary literature of Ce3d spectra in their bibliography, they often do so for decorative purposes, rather than practical purposes.

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Section: Four Peaksmentioning

confidence: 99%

Section: Four Peaksmentioning

confidence: 99%

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce₂O₃ and CeO₂

Paparazzo¹

2018

J. Phys.: Condens. Matter

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“…93 A recent study on silicate glass revealed that the sintering temperature of the glass should be also carefully managed I, they possess either RoHS elements or elements with visible absorption, which can vary color coordination of the LED, and thus it is difficult to use them for commercial application. Tellurite glasses can also reduce the sintering temperature down to 520°C, 56,[122][123][124][125][126][127][128][129][130][131][132][133][134] but they also have visible absorption and the high production cost of TeO 2 , which hampers mass production. Borate 60,113,114 and phosphate [115][116][117][118][119] glasses can be sintered below 600°C but they have weak chemical stability against moisture.…”

Section: Phosphors and Glass Materials For Pigmentioning

confidence: 99%

Review—A Review on Phosphor in Glass as a High Power LED Color Converter

Chung

Nam

2019

ECS J. Solid State Sci. Technol.

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Phosphor-in-glass (PiG) is a mixture of a transparent glass and ceramic phosphors and has been recently commercialized for its various advantages as an inorganic color converter for white light emitting diodes (wLEDs). Since the successful demonstration of the wLED and its improved stability over the conventional phosphors in silicon or organic resins, extensive studies have been reported to improve its color conversion and resultant LED properties, such as luminescence efficacy, chromaticity, correlated color temperature and color gamut, as well as its long term stability. Various attempts have also been made to fabricate a PiG structure and to extend its applications. This study reviews the recent progress of PiG and discusses various approaches that have been proposed to overcome the technical issues related to PiG.

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“…[ 5 ] For this purpose, glasses of low‐melting temperature such as tellurites and boro‐tellurites, such as TeO 2 –ZnO–Na 2 O and TeO 2 –Na 2 O–ZnO–B 2 O 3 glass systems, have been used to preserve YAG:Ce luminescent properties after PiG processing, and other oxides, such as Sb 2 O 3 and Al 2 O 3 , can be added. [ 11–16 ] Typically, PiG using TeO 2 ‐based glasses is fabricated by sintering (below 800 °C) a mixture of YAG:Ce and the designed inorganic low‐melting glass frits at an optimal temperature. [ 17–19 ]…”

Section: Introductionmentioning

confidence: 99%

Recycled Glass and Ce‐Doped‐Y₃Al₅O₁₂ Nanoparticles Phosphor‐in‐Glass for White Light‐Emitting Diodes Applications

Salazar-Valenzuela

Alvarado-Rivera

González

et al. 2020

Physica Status Solidi (a)

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A series of nanocomposites of recycled soda‐lime glass from a glass container and Y3Al5O12:Ce3+ (YAG:Ce) phosphor nanoparticles are fabricated by the two‐step low‐temperature co‐sintering technology. A transparent glass bottle from a commercial beverage is used as glass frit source and mixed with YAG:Ce nanoparticles. Afterward, the powders are pressed to obtain pellets with phosphor concentrations in the range of 2.5–15 wt%. The pellets are sintered at 800 and 900 °C. X‐ray diffraction (XRD) analysis shows that YAG:Ce nanoparticles are conserved even after sintering at 900 °C. The XRD analysis shows that YAG:Ce nanoparticles are conserved even after sintering at 900 °C. The emission spectra of the Ce3+ ions of yttrium aluminum garnet (YAG) nanoparticles combined with the transmitted blue light exhibit color tuning related to the phosphor concentration and the sintering temperature. A tonality shift from cold‐white light toward yellowish‐green region is observed according to the estimated CIE 1931 chromaticity. Thus, recycled glass from a commercial glass container and YAG:Ce nanoparticles phosphor‐in‐glass (PiG) can be an eco‐friendly and low‐cost alternative as color converters.

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Effect of annealing in hydrogen atmosphere on the photoluminescence properties of phosphor-in- glass in tellurate glass

Cited by 24 publications

References 19 publications

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce₂O₃ and CeO₂

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce₂O₃ and CeO₂

Review—A Review on Phosphor in Glass as a High Power LED Color Converter

Recycled Glass and Ce‐Doped‐Y₃Al₅O₁₂ Nanoparticles Phosphor‐in‐Glass for White Light‐Emitting Diodes Applications

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Effect of annealing in hydrogen atmosphere on the photoluminescence properties of phosphor-in- glass in tellurate glass

Cited by 24 publications

References 19 publications

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce2O3 and CeO2

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce2O3 and CeO2

Review—A Review on Phosphor in Glass as a High Power LED Color Converter

Recycled Glass and Ce‐Doped‐Y3Al5O12 Nanoparticles Phosphor‐in‐Glass for White Light‐Emitting Diodes Applications

Contact Info

Product

Resources

About

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce₂O₃ and CeO₂

Use and mis-use of x-ray photoemission spectroscopy Ce3d spectra of Ce₂O₃ and CeO₂

Recycled Glass and Ce‐Doped‐Y₃Al₅O₁₂ Nanoparticles Phosphor‐in‐Glass for White Light‐Emitting Diodes Applications