Synthesis and enhanced luminescent characterization of SrAl4O7:Eu2+,RE3+ (RE = Nd, Dy) nanophosphors for light emitting applications

Singh, Devender; Tanwar, Vijeta; Simantilleke, Anura Priyajith; Bhagwan, Shri; Marı́, B.; Kadyan, Pratap Singh; Singh, K.C.; Singh, Ishwar

doi:10.1007/s10854-016-4428-2

Cited by 38 publications

(7 citation statements)

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“…[6][7][8][9] Compared to traditional incandescent and halogen lights, LEDs and w-LEDs have the benets of low energy consumption, durability, extended life, the absence of mercury, and environmental friendliness. [10][11][12] Due to their benets, LEDs and w-LEDs have a wide variety of potential applications in the elds of display technology and lighting.…”

Section: Introductionmentioning

confidence: 99%

A green light emissive LaSr₂AlO₅:Er³⁺ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

Kumar,

Singh,

Kumar

2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

A green light emissive LaSr₂AlO₅:Er³⁺ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

Kumar,

Singh,

Kumar

2024

RSC Adv.

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“…The design and architecture of power‐efficient lighting sources is very important as illumination consumes about 20% of global energy consumption [1, 2]. Therefore, saving energy is a striking challengefaced by the material science community.…”

Section: Introductionmentioning

confidence: 99%

Crystallographic, morphological and photoluminescent investigations of Tb³⁺‐doped YAlO₃ perovskites for lighting applications

et al. 2023

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Terbium(III)‐doped yttrium aluminate perovskite (YAP:xTb3+) (x = 0.01–0.08 mol) was synthesized using a simple gel‐combustion method. Structural elucidations were performed using X‐ray diffraction (XRD) and Rietveld analysis. Fourier‐transform infrared spectral studies validated the efficient synthesis of designed doped samples. Transmission electron microscopic images showed the agglomerated irregular dimensions of the synthesized nanocrystalline materials. When excited at 251 nm, a strong emissive line attributed to 5D4 → 7F5 electronic transition was observed at 545 nm (green emission). The maximum luminescence was found at the optimized concentration (0.05 mol) of Tb3+ ions; this emission was quenched by dipolar–dipolar (d–d) interactions. Chromaticity (x and y) and correlated colour temperature parameters were obtained by analysing the emission profiles. Finally, the colour coordinates of nanophosphors were closer to the National Television Standards Committee green coordinates, which replicates their potency in the design and architecture of R‐G‐B‐based white LEDs.

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“…In recent years, material scientists have made marked efforts to replace traditional lighting tools with advanced lighting resources to meet the intensified demand for global energy consumption [1, 2]. Therefore, energy saving is a significant challenge that entices the widespread attention of material innovators.…”

Section: Introductionmentioning

confidence: 99%

Structural, morphological, and optical characteristics of Gd₂Si₂O₇:Dy³⁺ nanophosphors for WLEDs

et al. 2023

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Yellowish‐white light‐emitting Gd2‐xSi2O7:xDy3+ (x = 1–5 mol%) nanophosphors were prepared using a solution combustion synthesis method. Fluorescence spectrophotometry and X‐ray diffraction measurements were performed to scrutinize the optical performances and phase recognition of the designated nanophosphors. The outcomes specified that the prepared phosphors were crystallized into a triclinic phase with a P‐1 space group. As the concentration of Dy3+ ions was increased, the unit‐cell volume decrease proportionally due to the replacement of large‐sized Gd3+ by small‐sized Dy3+ ions. Under ultraviolet excitation at 349 nm, emission spectra consisted of two pronounced emission lines at ~482 nm (blue line), ~578 nm (yellow line), and a relatively weaker emission at ~670 nm (red line) due to 4F9/2→6H15/2, 4F9/2→6H13/2, and 4F9/2→6H11/2 intraconfigurational transitions of Dy3+ ions, respectively. The evidence about the site symmetry around Dy3+ ions was examined by considering the ratio of yellow‐to‐blue emission intensity. The observed critical distance (Rc) value was ~20.56 Å (≫5 Å), which signified that energy transfer primarily occurred due to multipolar interaction. The obtained coordinates were close to the white region of the Commission Internationale de l'Éclairage chromaticity diagram, which marked a significant milestone in the development of white light‐emitting diodes.

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Synthesis and enhanced luminescent characterization of SrAl4O7:Eu2+,RE3+ (RE = Nd, Dy) nanophosphors for light emitting applications

Cited by 38 publications

References 31 publications

A green light emissive LaSr₂AlO₅:Er³⁺ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

A green light emissive LaSr₂AlO₅:Er³⁺ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

Crystallographic, morphological and photoluminescent investigations of Tb³⁺‐doped YAlO₃ perovskites for lighting applications

Structural, morphological, and optical characteristics of Gd₂Si₂O₇:Dy³⁺ nanophosphors for WLEDs

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Synthesis and enhanced luminescent characterization of SrAl4O7:Eu2+,RE3+ (RE = Nd, Dy) nanophosphors for light emitting applications

Cited by 38 publications

References 31 publications

A green light emissive LaSr2AlO5:Er3+ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

A green light emissive LaSr2AlO5:Er3+ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

Crystallographic, morphological and photoluminescent investigations of Tb3+‐doped YAlO3 perovskites for lighting applications

Structural, morphological, and optical characteristics of Gd2Si2O7:Dy3+ nanophosphors for WLEDs

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A green light emissive LaSr₂AlO₅:Er³⁺ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

A green light emissive LaSr₂AlO₅:Er³⁺ nanocrystalline material for solid state lighting: crystal phase refinement and down-conversion photoluminescence with high thermal stability

Crystallographic, morphological and photoluminescent investigations of Tb³⁺‐doped YAlO₃ perovskites for lighting applications

Structural, morphological, and optical characteristics of Gd₂Si₂O₇:Dy³⁺ nanophosphors for WLEDs