Articles with "thermal quenching" as a keyword



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Effect of doping Sr2+ on luminescence and abnormal thermal quenching behavior of silicate solid-solution green phosphor Ba9Lu2Si6O24:Eu2+

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Published in 2018 at "Journal of Materials Science: Materials in Electronics"

DOI: 10.1007/s10854-018-0122-x

Abstract: A novel Eu2+ ions doped silicate solid-solution green phosphors, (Ba1−ySry)9Lu2Si6O24:0.14Eu2+ (0 ≤ y ≤ 0.25), have been successfully prepared by conventional sintering method. The Rietveld refinement result was taken to determine the pure phase of (Ba1−ySry)9Lu2Si6O24:0.14Eu2+ (0 ≤ y ≤ 0.25). The characteristic… read more here.

Keywords: thermal quenching; solution green; silicate solid; 9lu2si6o24 14eu2 ... See more keywords
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Zero-Thermal-Quenching and Improved Chemical Stability of a UCr4C4-Type Phosphor via Crystal Site Engineering

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Published in 2020 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2020.127664

Abstract: Abstract Europium-doped UCr4C4 cuboid phosphors with narrow and tunable emission show promise for application in designing light-emitting diodes with high color purity and thermal stability. Nevertheless, their poor chemical stability bottlenecks their use in lighting… read more here.

Keywords: zero thermal; thermal quenching; chemical stability; site ... See more keywords
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Weak thermal quenching of the luminescence in Y2.94-xLuxAl4GaO12: 0.06Ce3+ green phosphor for white light-emitting diodes

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Published in 2019 at "Ceramics International"

DOI: 10.1016/j.ceramint.2019.08.049

Abstract: Abstract A series of Y2.94-xLuxAl4GaO12: 0.06Ce3+ phosphors were prepared by the conventional solid-state reaction method. It was confirmed that the phosphors exhibit cubic garnet crystal structures by XRD and Rietveld refinements. The phosphors show an… read more here.

Keywords: weak thermal; quenching luminescence; phosphor; thermal quenching ... See more keywords
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Optimization of the thermometric performance of single band ratiometric luminescent thermometer based on Tb3+ luminescence by the enhancement of thermal quenching of GSA-excited luminescence in TZPN glass

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Published in 2020 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2020.157690

Abstract: Abstract Responding to the latest trends in luminescence thermometry, a new material of TZPN glass doped with Tb3+ ions was investigated for its use in the single band ratiometric approach. In contrast to the most… read more here.

Keywords: thermal quenching; tzpn glass; single band; luminescence ... See more keywords
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An optical thermometry based on abnormal negative thermal quenching of the charge transfer band edge

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Published in 2019 at "Journal of Luminescence"

DOI: 10.1016/j.jlumin.2019.116636

Abstract: Abstract In this work the temperature-dependent photoluminescence excitation and photoluminescence spectroscopies of Eu3+-doped LuVO4 phosphors have been performed in the 298–448 K range. It is found that the charge transfer band (CTB) of [VO4]3- unites undergoes… read more here.

Keywords: negative thermal; thermometry; thermal quenching; abnormal negative ... See more keywords
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Abnormal negative thermal quenching of photoluminescence in CdMnTe:In crystals

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Published in 2021 at "Optical Materials"

DOI: 10.1016/j.optmat.2021.111379

Abstract: Abstract Temperature-dependent photoluminescence (PL) properties of indium-doped CdMnTe (CMT:In) crystals were investigated. Four emission peaks of the tip crystal and three emission peaks of the tail crystal from as-grown CMT:In ingot were observed at low-temperature… read more here.

Keywords: negative thermal; cdmnte; thermal quenching; emission peaks ... See more keywords
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Tunable Optical Properties and Increased Thermal Quenching in the Blue-Emitting Phosphor Series: Ba2(Y1–xLux)5B5O17:Ce3+ (x = 0–1)

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Published in 2017 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.7b01416

Abstract: The preparation of cerium-substituted barium lutetium borate, Ba2Lu5B5O17:Ce3+, is achieved using high temperature solid state synthesis. This compound crystallizes in the Ba2Y5B5O17-type structure and shows an efficient blue emission (λmax = 447 nm) when excited… read more here.

Keywords: ce3; thermal quenching; 5b5o17 ce3; xlux 5b5o17 ... See more keywords
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Experimental and Theoretical Studies of the Site Occupancy and Luminescence of Ce3+ in LiSr4(BO3)3 for Potential X-ray Detecting Applications.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c01016

Abstract: Ce3+-doped LiSr4(BO3)3 phosphors have been prepared by a high-temperature solid-state reaction method, and structural refinement of the host compound has been performed. The excitation and emission spectra in the vacuum ultraviolet-ultraviolet-visible range at cryogenic temperatures… read more here.

Keywords: theoretical studies; experimental theoretical; ce3; thermal quenching ... See more keywords
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Suppression of Thermal Quenching for CsPbX3 (X = Cl, Br, and I) Quantum Dots via the Hollow Structure of SrTiO3 and Light-Emitting Diode Applications.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c03141

Abstract: All-inorganic perovskite quantum dots (PQDs, CsPbX3, X = Cl, Br, and I) show outstanding application prospects in the field of photoelectric devices. In recent years, the development of PQDs has greatly improved their stability to… read more here.

Keywords: quantum dots; structure; thermal quenching; srtio3 ... See more keywords
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Key Role Effect of Samarium in Realizing Zero Thermal Quenching and Achieving a Moisture-Resistant Reddish-Orange Emission in Ba3LaNb3O12:Sm3.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c03231

Abstract: The strategy to enhance phosphor stability against thermal quenching and moisture conditions will contribute to controlling the feature of phosphor-converted white-light-emitting diodes (pc-WLEDs). Herein, an effective strategy is achieved with the incorporation of Sm3+ ions,… read more here.

Keywords: thermal quenching; moisture; emission; ba3lanb3o12 sm3 ... See more keywords
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Tunable Optical Properties and Enhanced Thermal Quenching of Non-Rare-Earth Double-Perovskite (Ba1- xSr x)2YSbO6:Mn4+ Red Phosphors Based on Composition Modulation.

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Published in 2018 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.8b00947

Abstract: Non-rare-earth Mn4+-doped double-perovskite (Ba1- xSr x)2YSbO6:Mn4+ red-emitting phosphors with adjustable photoluminescence are fabricated via traditional high-temperature sintering reaction. The structural evolution, variation of Mn4+ local environment, luminescent properties, and thermal quenching are studied systematically. With… read more here.

Keywords: thermal quenching; double perovskite; rare earth; perovskite ba1 ... See more keywords