Effect of dopant concentration on luminescence properties of Ba3(PO4)2:RE (RE= Sm3+, Eu3+, Dy3+) phosphor for solid-state lighting

Nandanwar, C. M.; Kokode, N. S.; Yerpude, A.N.; Dhoble, S.J.

doi:10.1016/j.cdc.2022.100979

Cited by 29 publications

(10 citation statements)

References 22 publications

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“…These materials' PLE spectra were obtained at room temperature by measuring emission wavelength at 602 nm. These spectra exhibit four narrow and strong excitation peaks at 347, 364, 377 and 406 nm ascribed to transitions from ground state 6 H5/2 to excited states 4 H9/2, 6 D3/2, 4 D1/2 and 4 F7/2 arising from f-f transitions of Sm 3+ ions [29][30][31][32][33]. The highest excitation peak formed at 406 nm as a result of the 6 H5/2 → 4 F7/2 transition.…”

Section: Photoluminescence Properties Of Sr3la(alo)3(bo3)4:sm 3+ Phos...mentioning

confidence: 98%

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Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED

Yerojwar

Kokode

Nandanwar

et al. 2023

Phys. Chem. Solid St.

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A Red emitting with high efficiency Eu3+ doped Sr3La(AlO)3(BO3)4 and Sm3+ doped Sr3La(AlO)3(BO3)4 phosphors has been synthesized by combustion method, meanwhile, the photoluminescence properties of samples are investigated in detail. Morphology by SEM and chromaticity by CIE was studied. The results show that the excitation extends from 340 nm to 420 nm, with the highest excitation (394 nm and 406 nm) being in the violet area for Eu3+ and Sm3+ doping, indicating that the phosphor can correlate well with LED chips. Under violet light excitation of 394nm the phosphor Eu3+ doped Sr3La(AlO)3(BO3)4 and of 406 nm the phosphor Sm3+ doped Sr3La(AlO)3(BO3)4 can emit strong red light showing main emission peaks located at 617 nm and 602 nm are observed respectively. The PL properties implies the excellent stability of the phosphor. These results imply that the importance red phosphors Sr3La(AlO)3(BO3)4:Eu3+ and Sr3La(AlO)3(BO3)4:Sm3+ in W-LEDs under NUV excitation.

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Section: Photoluminescence Properties Of Sr3la(alo)3(bo3)4:sm 3+ Phos...mentioning

confidence: 98%

“…The Sm 3+ in phosphors always exhibits a bright reddish emission, which can improve the color-rendering index (CRI) of phosphorconverted w-LEDs [19]. All lanthanide aluminates hosts are promising since they are used to produce white light by increasing the intensity of a red component [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED

Yerojwar

Kokode

Nandanwar

et al. 2023

Phys. Chem. Solid St.

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“…The scarlet emission of Sm 3+ ion is caused by the significant transition 4 G 5/2 ! 6 H 7/2 , allowing the fabrication of blue, red, and green (BRG) phosphor-based pc-w-LEDs [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Energy departments throughout the world are working hard to reduce energy usage for lighting using efficient light‐emitting diodes (LEDs). The constant need for energy, along with the energy crisis, global warming, and pollution, puts much pressure on the development of sustainable white light that may cut energy consumption and operational costs [1–3]. Because of the necessity to preserve and continue environmental protection, it is the individual human being's obligation to save energy resources and experiment with new eco‐friendly lighting solutions.…”

Section: Introductionmentioning

confidence: 99%

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Photoluminescence characteristics of novel Sm³⁺ ions‐doped La_1.4Al_22.6O₃₆ phosphor for n‐UV w‐LED

et al. 2023

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The combustion procedure was used to synthesize La1.4Al22.6O36:Sm3+ phosphors. The X‐ray diffraction (XRD) patterns and morphological and photoluminescence properties were investigated. The XRD patterns consisted of a hexagonal crystal structure. At 405 nm, the maximum excitation intensity was obtained. Following 405 nm excitation, three different emission peaks at 573, 604, and 651 nm were seen. Concentration quenching occurred at 1.5 mol% Sm3+ ions. The Commission Internationale de l'éclairage coordinates for the La1.4Al22.6O36 phosphor with Sm3+ doping were 604 nm (x = 0.644, y = 0.355) falling in the red region. The findings implied that the prepared phosphor may be used to develop w‐light‐emitting diodes.

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Structural, morphological, and photoluminescence properties of RE (RE = Dy³⁺, Eu³⁺, Sm³⁺)‐doped CaAlBO₄ phosphor synthesized by combustion method

Maske,

Yerpude,

Wandhare

et al. 2023

Luminescence

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The CaAlBO4:RE (RE = Dy3+, Eu3+, Sm3+) phosphor were prepared via combustion synthesis and studied by X‐ray diffraction (XRD), Fourier‐transform infrared (FTIR) analysis, scanning electron microscopy (SEM), energy‐dispersive X‐ray spectroscopy (EDS), photoluminescence (PL) spectra and CIE coordinates. The phase formation of the obtained phosphor was analyzed by XRD and the result was confirmed by standard PDF Card No. 1539083. XRD data successfully indicated pure phase of CaAlBO4 phosphor. The crystal structure of CaAlBO4 phosphor is orthorhombic with space group Ccc2 (37). The SEM image of CaAlBO4 phosphor reveals an agglomerated morphology and non‐uniform particle size. The EDS image provides evidence of the elements present and the chemical makeup of the materials. Under the 350 nm excitation, the emission spectrum of Dy3+ activated CaAlBO4 phosphor consists of two main groups of characteristic peaks located at 484 and 577 nm which are ascribed to 4F9/2 → 6H15/2 and 4F9/2 → 6H13/2 transition of Dy3+ respectively. The PL emission spectra of CaAlBO4:Eu3+ phosphor shows characteristics bands observed around 591 and 613 nm, which corresponds to 5D0 → 7F1 and 5D0 → 7F2 transition of Eu3+ respectively, upon 395 nm excitation wavelength. The emission spectra of Sm3+ activated CaAlBO4 phosphor shows three characteristic bands observed at 565, 601 and 648 nm which emits yellow, orange and red color. The prominent emission peak at the wavelength 601 nm, which is attributed to 4G5/2 → 6H7/2 transition, displays an orange emission. The CIE color coordinates of CaAlBO4:RE (RE = Dy3+, Eu3+, Sm3+) phosphor are calculated to be (0.631, 0.368), (0.674, 0.325) and (0.073, 0.185). As per the obtained results, CaAlBO4:RE (RE = Dy3+, Eu3+, Sm3+) phosphor may be applicable in eco‐friendly lightning technology.

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Effect of dopant concentration on luminescence properties of Ba3(PO4)2:RE (RE= Sm3+, Eu3+, Dy3+) phosphor for solid-state lighting

Cited by 29 publications

References 22 publications

Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED

Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED

Photoluminescence characteristics of novel Sm³⁺ ions‐doped La_1.4Al_22.6O₃₆ phosphor for n‐UV w‐LED

Structural, morphological, and photoluminescence properties of RE (RE = Dy³⁺, Eu³⁺, Sm³⁺)‐doped CaAlBO₄ phosphor synthesized by combustion method

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Effect of dopant concentration on luminescence properties of Ba3(PO4)2:RE (RE= Sm3+, Eu3+, Dy3+) phosphor for solid-state lighting

Cited by 29 publications

References 22 publications

Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED

Synthesis and Photoluminescence characterization of Sr3La(AlO)3(BO3)4:Eu3+,Sm3+ Phosphor for W-LED

Photoluminescence characteristics of novel Sm3+ ions‐doped La1.4Al22.6O36 phosphor for n‐UV w‐LED

Structural, morphological, and photoluminescence properties of RE (RE = Dy3+, Eu3+, Sm3+)‐doped CaAlBO4 phosphor synthesized by combustion method

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Product

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Photoluminescence characteristics of novel Sm³⁺ ions‐doped La_1.4Al_22.6O₃₆ phosphor for n‐UV w‐LED

Structural, morphological, and photoluminescence properties of RE (RE = Dy³⁺, Eu³⁺, Sm³⁺)‐doped CaAlBO₄ phosphor synthesized by combustion method