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Article
Chemistry, Inorganic & Nuclear
Li Zhou et al.
Summary: Dy3+ doped tungstate CaGdSbWO8 (CGSW) phosphors were synthesized using a high-temperature solid-state reaction and their properties were systematically studied. The phosphors demonstrated a wide excitation range and emitted various colors attributed to different energy level transitions of Dy3+ ions. The concentration quenching behavior and thermal stability of the phosphors were also investigated. The optimized phosphor showed high emission intensity at typical operating temperature of LEDs, and the fabricated white LED exhibited high color rendering index and near-standard white coordinates.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
B. C. Jamalaiah et al.
Summary: Sr3Gd(PO4)(3) phosphors activated with different concentrations of Dy3+ ions were fabricated and their optical properties were investigated. Strong and efficient emission was achieved by optimizing the Dy3+ concentration. It was observed that energy transfer among the excited Dy3+ ions occurred through dipole-dipole interactions at higher concentrations.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Pawan Kumar et al.
Summary: Single-phased Gd3-xAl5O12:xDy3+(x = 0.01-0.07) nanophosphors emitting cool white light were synthesized via gelcombustion method. The samples exhibited a single cubic phase with a space group of Ia-3d (230) based on diffraction data and Rietveld results. The synthesized phosphors showed intense blue and yellow emission at 482 nm and 576 nm respectively, and were identified as potential candidates for white-LED applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Ruitong Song et al.
Summary: In this study, a single-phase white-emitting phosphor, La(BO3,PO4):Dy3+, was successfully synthesized. The phosphor exhibits high thermostability and emits strong blue and yellow visible lights. The comparable color coordinates with ideal white light make it a prospective candidate for lighting application.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Huan Tang et al.
Summary: A narrow-band green-emitting phosphor RbBaBP2O8 (RBBP):Tb3+ was synthesized and showed dominant 5D4 -> 7F5 transition under 351 nm near-ultraviolet light excitation. The fluorescence response to Tb3+ concentration was studied, and the quenching mechanism was determined. The phosphor exhibited high thermal stability and resistance to color shifting, making it a potential alternative for backlighting display applications.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Ceramics
Denis Yu Kosyanov et al.
Summary: For the first time, ultrafine-grained Al2O3-rare earth:yttrium aluminium garnet (Al2O3-RE:YAG) composite ceramics were obtained using reactive spark plasma sintering (SPS). The impact of key sintering parameters on densification, structural-phase states, and luminescent properties was comprehensively studied. Different phase formation and densification were observed between Ce-doped and Ce,Gd-codoped systems. The synthesized biphasic ceramics showed promising microstructural and luminescence performance for applications in high-power white light-emitting diodes (WLEDs) and laser diodes (LDs), reaching similar external quantum efficiency (EQE) and lifetime as commercial Ce:YAG materials.
JOURNAL OF ADVANCED CERAMICS
(2023)
Article
Materials Science, Ceramics
Umang Berwal et al.
Summary: A series of GTO pyrochlore samples doped with Dy3+ trivalent ions were synthesized, and their crystallographic structure and photoluminescent properties were investigated. Results showed that the substitution of Dy3+ did not disturb the crystallographic structure, and all the samples exhibited blue shifting in the vibrational bands. The emission spectra under excitation wavelength 347 nm revealed high intense blue and yellow bands, as well as a less intense band, thus demonstrating the potential of Dy3+-substituted GTO pyrochlore samples for white light-emitting diode (wLEDs) applications.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Payal Khajuria et al.
Summary: In this study, a near-UV-converted Dy3+ doped phosphor was synthesized and showed high energy transfer efficiency and color close to white light.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Spectroscopy
R. Nagaraj et al.
Summary: The novel white light emitting silicate-based phosphor xDyKBS demonstrated intense yellow and blue emission peaks, with the yellow emission peak showing higher intensity. Under near-UV excitation, the phosphor can emit warm and neutral white light, making it a promising candidate for applications in warm white LEDs, solar cells, optical sensors, and lasers.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Review
Chemistry, Multidisciplinary
Mu-Huai Fang et al.
Summary: This paper provides a comprehensive review of the development of phosphor materials in different generations, highlighting the key design mechanisms to meet the requirements of high-level LED applications. The demands for high brightness, high thermal stability, narrowband emission for high color gamut, and broadband emission for near-infrared are discussed. Future prospects for micro-LED applications and nanoluminescent materials are also provided.
Article
Materials Science, Multidisciplinary
T. Krishnapriya et al.
Summary: This study focuses on the development of outdoor lighting LEDs that do not disrupt natural plant habitats. A series of Na6Ca(1-X)P2O9: X Dy3+ phosphors were synthesized and analyzed for their structural details and luminescent properties. The results show that these phosphors have advantages for use in miniaturized devices like LEDs and exhibit promising performance for outdoor lighting applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Ceramics
Qing Li et al.
Summary: Highly transparent 0.5 and 1.0 at% Pr-doped Y2O3 ceramics were prepared by vacuum sintering plus hot isostatic pressing (HIP), showing pore-free microstructures with an average grain size of about 1 μm. The charge states of the Pr ions could be altered by regulating annealing atmospheres, leading to different absorption and emission characteristics in the visible wavelength region.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Chemistry, Physical
Ruitong Song et al.
Summary: In this study, dysprosium activators were doped into barium tellurooxyphosphate to improve luminescent performance, and alkali metal ions were used as charge compensators. The optical absorption behavior and enhanced emission intensity of the phosphor were investigated. The study reveals that the doped phosphor shows promise as a yellow-emitting candidate for white light-emitting diodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Parvathala Ankoji et al.
Summary: This study presents the synthesis of SrLa1-xAlO4: xDy(3+) (x = 0, 1, 3, and 5 mol%) phosphors via solid-state reaction, and investigates their structural, morphological, and photoluminescence properties. The results reveal that these materials exhibit excellent luminescence and have potential for white light emission.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Inorganic & Nuclear
Bin Deng et al.
Summary: A series of Dy3+ doped KCa2Nb3O10 phosphors with yellow emission were prepared using the molten-salt method. The crystal structure, optimal concentration, photoluminescence properties, and luminescent stability of the phosphors were studied. The results show that the KCa2Nb3O10:Dy3+ phosphors are suitable for white LED applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yuefei Xiang et al.
Summary: A novel yellow-emitting phosphor activated by trivalent dysprosium (Dy3+) ions was successfully synthesized and characterized. The phosphor exhibited blue and yellow emissions under near-ultraviolet excitation, with an optimal doping concentration of 7 mol%. It demonstrated good thermal stability and resistance to color shifting, making it a promising candidate for application in NUV-irradiated white light-emitting diodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
P. Raghupathi et al.
Summary: New and low energy consumption Li6AlGd(BO3)(4): Dy3 + phosphors were successfully fabricated and characterized for lighting applications. The phosphors showed efficient luminescence through specific transitions under excitation at 350 nm. Photometric parameters determined from emission spectral results demonstrated the potential application of these materials in lighting devices.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Optics
Jiang Guo et al.
Summary: A new yellow-emitting phosphor, NaCaTiTaO6:Dy3+, with a stable double perovskite structure, was successfully synthesized via solid-phase synthesis. The phosphor showed a particle size of approximately 3.8 μm and exhibited a maximum emission peak at 574 nm under irradiation at 389 nm. The Dy3+ doping concentration was optimized and the phosphor demonstrated high thermal stability. Its excellent luminescence properties make it suitable for application in white-light emitting diodes (w-LEDs).
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Yu Kang et al.
Summary: This study successfully prepared fine-grained and high-efficiency red phosphors by treating commercially available phosphors with ball milling, centrifuging, and acid washing. The red-emitting mini-LEDs fabricated by combining these phosphors with blue mini-LED chips showed high external quantum efficiency and high luminance.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Chemistry, Physical
Miao Gao et al.
Summary: By studying the physical properties and luminescence process of Ca18Li3Y(PO4)(14): Dy3+ phosphor, it was found to have strong excitation and warm white light emission characteristics, with potential applications in solid state lighting.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Optics
Obert P. Golim et al.
Summary: The study revealed that Ca9MgLi(PO4)(7):Dy3+ phosphors exhibit efficient excitation and superior photoluminescence emission, making them suitable for use in white LED devices, demonstrating potential applications.
JOURNAL OF LUMINESCENCE
(2021)
Article
Chemistry, Physical
Priyanka Sehrawat et al.
Summary: The study focuses on the synthesis and characterization of nano-crystalline phosphors with Dy3+ ions incorporated into BaYAlZn3O7 matrix, resulting in white light emission. The nanophosphors exhibit potential for high luminance and are identified as a new superfine cool-white-emanating material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Nataliya Krutyak et al.
Summary: Single-phase Na3.6Y1.8-x(PO4)(3):xDy(3+) phosphors with a NASICON-type structure were synthesized by high-temperature solid-state reaction. Luminescence properties were studied, revealing concentration quenching of Dy3+ emission due to dipole interaction. The study also detected two broad emission bands tentatively attributed to self-trapped excitons and defect-related centers.
Article
Materials Science, Ceramics
Vijaya V. Shanbhag et al.
Summary: This study systematically analyzed SiO2@CaTiO3:Dy-Li core shell nanoparticles, finding that co-doped samples exhibit higher luminescence intensity and SiO2 coating enhances luminescence further. The new material shows potential for applications in wLEDs and solid state displays.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Hanzhao Song et al.
Summary: In this study, Novel Te4+-doped CaYAlO4 phosphors were successfully synthesized via solid-state reaction and were found to emit deep-red light when excited by specific wavelengths. The optimal Te4+ doping concentration was identified as 2 mol%, and it was observed that the luminescent intensity of the phosphors could decrease with an increase in temperature.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Zhenyu Fang et al.
Summary: This study reports a new Sm3+-activated KNBP powder phase with good photoluminescence performance and thermal stability under NUV irradiation. The powder phase is suitable for NUV-pumped warm white LEDs.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Ceramics
Ning Liu et al.
Summary: Novel scheelite structures of fluorescent materials were successfully prepared using a high-temperature solid-phase process. Tests revealed that certain phosphors showed good luminescence properties and could be used in the fabrication of LED devices.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Ceramics
Tianyuan Zhou et al.
Summary: Ce,Cr:LuAG TCs achieved efficient spectral regulation through Cr3+ doping, enhancing their luminescence properties in white LED/LD applications. By combining with other materials, such as 0.5 at% Ce:YAG TC, even better results were obtained in terms of CRI values for TC based white LEDs and LDs.
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(2021)
Article
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Jing Zhu et al.
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Lei Shi et al.
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Jianwei Qiao et al.
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Shuxing Li et al.
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(2018)
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Jialei Zhang et al.
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Jianwei Qiao et al.
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INORGANIC CHEMISTRY
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