Structural and luminescent properties of Eu3+-doped GdSrAl3O7 nanophosphor

Singh, S. K.; Khatkar, S.P.; Boora, Priti; Taxak, V.B.

doi:10.1007/s10853-014-8176-5

Cited by 29 publications

(10 citation statements)

References 32 publications

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“…They outlined that annealing temperature should be 1000 °C to provide the most pure red light with highest intensity. Singh et al noted that postsynthesis treatment of GdSrAl 3 O 7 :Er 3+ at 550 °C for 1 h is sufficient to produce high-quality red phosphors . The color purity in this case can be tuned by changing the Gd/Eu ratio.…”

Section: Solution Combustion-derived Materialsmentioning

confidence: 99%

Solution Combustion Synthesis of Nanoscale Materials

Mukasyan²,

et al. 2016

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Solution combustion is an exciting phenomenon, which involves propagation of self-sustained exothermic reactions along an aqueous or sol-gel media. This process allows for the synthesis of a variety of nanoscale materials, including oxides, metals, alloys, and sulfides. This Review focuses on the analysis of new approaches and results in the field of solution combustion synthesis (SCS) obtained during recent years. Thermodynamics and kinetics of reactive solutions used in different chemical routes are considered, and the role of process parameters is discussed, emphasizing the chemical mechanisms that are responsible for rapid self-sustained combustion reactions. The basic principles for controlling the composition, structure, and nanostructure of SCS products, and routes to regulate the size and morphology of the nanoscale materials are also reviewed. Recently developed systems that lead to the formation of novel materials and unique structures (e.g., thin films and two-dimensional crystals) with unusual properties are outlined. To demonstrate the versatility of the approach, several application categories of SCS produced materials, such as for energy conversion and storage, optical devices, catalysts, and various important nanoceramics (e.g., bio-, electro-, magnetic), are discussed.

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Section: Solution Combustion-derived Materialsmentioning

confidence: 99%

Solution Combustion Synthesis of Nanoscale Materials

Mukasyan²,

et al. 2016

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“…The emission spectra excited by 394 nm of the obtained Ca0.9ZrSi2O7:0.1Eu 3+ phosphors have been showen at Figure 3. The 394 nm excitation produced several strong emission peaks with the peaks at 578, 589, 615, 655, and 702 nm, respectively, which they are ascribed to the 5 D0-7 F0, 5 D0-7 F1, 5 D0-7 F2, 5 D0-7 F3 and 5 D0-7 F4 transitions [15]. The predominant emission peak is at 615nm, corresponding to the 5 D0→ 7 F2 electric-dipole transition of Eu 3+ which shows the rare earth Eu 3+ ions are located in noncentrosymmetric sites.…”

Section: Advances In Intelligent Systems Research Volume 168mentioning

confidence: 97%

Luminescence Property of Eu3+-doped CaZrSi2O7 Phosphors for White LEDs

Chen¹,

Xu²,

He³

et al. 2019

Proceedings of the 2019 International Conference on Modeling, Analysis, Simulation Technologies and Applications (MASTA 2019)

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Eu 3+ -doped CaZrSi2O7 phosphors with promising luminescent properties have been successfully prepared through microwave heating. The crystallinity and luminescent performance were characterized by powder X-ray diffraction pattern, photoluminescence spectra, respectively.The results show that the obtained Eu 3+ -doped CaZrSi2O7 phosphors have good crystallinity, and strong emission under near-ultraviolet ( NUV) light excitation, which emits red colors peaking at 615 nm, corresponding to the 5 D0→ 7 F2 electric-dipole transition of Eu 3+ which shows the rare earth Eu 3+ ions are located in noncentrosymmetric sites.The red emission of Eu 3+ -doped CaZrSi2O7 phosphors is excellently consistent with CIE chromaticity standards. It is suggested that the as-prepared Eu 3+ -doped CaZrSi2O7 samples have high potential for phosphor-converted white LEDs application.

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“…C=Al, Ga). These melilite compounds form tetragonal crystals belonging to the space group P-421m, containing five-membered rings constituted from AlO4 5tetrahedral in which A 2+ ions and B 3+ ions are distributed randomly at the eight-coordinated sites with Cs symmetry, while Al 3+ ions occupy two non-equivalent tetragonal sites with both S4 and Cs symmetries [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…In general, phosphors can be prepared by many synthesis methods including sol-gel, hydrothermal synthesis, microwave heating, solid-state reaction and solution combustion [16,19,20,32,33]. The main disadvantages of the traditional solid-state method include high reaction temperature, large particle sizes and inhomogeneous mixing [16,18,21,34]. The sol-gel auto-combustion synthesis is a suitable method in preparing multi-component oxides owing to the high reaction rate at a relatively low ignition temperature.…”

Section: Introductionmentioning

confidence: 99%

Sol-gel auto-combustion synthesis and luminescence properties of GdCaAl3O7: RE3+ (RE=Eu, Tb, Eu@Tb) phosphors for near-ultraviolet light-triggered indoor illumination

Zhou

Jiang

Chen

et al. 2022

Journal of Luminescence

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The color-tunable GdCaAl3O7: RE 3+ (RE=Eu, Tb, Eu@Tb) phosphors were synthesized via an ultrafast sol-gel auto-combustion synthesis method. The XRD (X-ray diffraction) patterns confirmed the forming of GdCaAl3O7 tetragonal phase, and the SEM (Scanning electron microscopy) images indicated that the obtained products presented honeycomb-like structure due to the gas releasing during the auto-combustion process. The EDS (Energy dispersion spectra) results suggest that Eu 3+ and Tb 3+ were well incorporated into the host matrices of GdCaAl3O7. The luminescent properties, concentration quenching mechanism, energy transfer mechanism, luminescent dynamics, thermal stability and product practicability of GdCaAl3O7: R 3+ (RE=Eu, Tb, Eu@Tb) phosphors were investigated systematically. All the GdCaAl3O7: RE 3+ (RE=Eu, Tb, Eu@Tb) products presented the characteristic emission of doped RE 3+ . Using GdCaAl3O7: 50% Tb 3+ @3.0% Eu 3+ as yellow-emitting phosphors in combination with commercial BAM: Eu 2+ blue-emitting phosphors and a NUV chip can successfully package a warm white LED device with high color rendering index (CRI, 86.3) and low correlated color temperature (CCT, 3348 K) that was very suitable for near-ultraviolet light-triggered indoor illumination.

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Structural and luminescent properties of Eu3+-doped GdSrAl3O7 nanophosphor

Cited by 29 publications

References 32 publications

Solution Combustion Synthesis of Nanoscale Materials

Solution Combustion Synthesis of Nanoscale Materials

Luminescence Property of Eu3+-doped CaZrSi2O7 Phosphors for White LEDs

Sol-gel auto-combustion synthesis and luminescence properties of GdCaAl3O7: RE3+ (RE=Eu, Tb, Eu@Tb) phosphors for near-ultraviolet light-triggered indoor illumination

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