Synthesis and photoluminescence properties of Sm 3+ substituted glaserite-type orthovanadates K 3 Y[VO 4 ] 2  with monoclinic structure

David, A. Duke John; Muhammad, Ghulam; Sivakumar, V.

doi:10.1016/j.jlumin.2016.04.025

Cited by 40 publications

(4 citation statements)

References 37 publications

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“…As seen from Figure b inset, the [VO 4 ] 3− tetrahedron contains three identical V−O bonds, and the length of the bond is 1.733 Å; the bond length of another bond is around 1.797 Å. Hence the radiative transitions such as 3 T 1 → 1 A 1 and 3 T 2 → 1 A 1 are partially allowed in the Ba 2 YV 3 O 11 phosphor …”

Section: Resultsmentioning

confidence: 96%

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba₂YV₃O₁₁ : Eu³⁺) Phosphor for Hybrid White LEDs

Rajendran

Vaidyanathan

2020

ChemistrySelect

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The present investigation focused on the sequence of Eu3+ activated red‐emitting vanadate phosphor for the high performance white LEDs. The blue emitting host lattice (Ba2YV3O11) and red emitting Ba2YV3O11 : Eu3+ phosphors were synthesized by the conventional solid‐state method and studied their optical properties in details. The host lattice and Eu3+ activated red phosphors were crystallized in the monoclinic crystal system. The Ba2YV3O11 emission was found in the bluish‐green region (444 and 512 nm, which corresponds to the 3T2→1A1 and 3T1→1A1 transitions), and the Eu3+ activated phosphors (Ba2Y1‐xEuxV3O11, x=0‐1, insteps of 0.1) display intense red emission at 618 nm due to the 5D0→7F2 electric dipole (ED) transition. The concentration quenching was observed at x=0.6, the detailed energy transfer mechanism was also explored. Thermal stability of the Ba2Y0.4Eu0.6V3O11 red phosphor retains the ∼60 % emission intensity at 423 K, and the internal quantum efficiency (IQE) was found to be 30 %. The red and white LEDs were fabricated by using the synthesized red phosphor with the combination of near UV LED (n‐UV), the white LED showed white emission with CIE is x=0.359; y=0.395; higher CRI (89) and low CCT (4693 K) values. These results prescribe that the presently synthesized phosphor can act as a suitable red‐emitting component in hybrid white LEDs.

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Section: Resultsmentioning

confidence: 96%

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba₂YV₃O₁₁ : Eu³⁺) Phosphor for Hybrid White LEDs

Rajendran

Vaidyanathan

2020

ChemistrySelect

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“…For example, the decay times of the prepared samples were shorter than that of K 3 Y[VO 4 ] 2 : x Sm 3+ . 15 Both the CCT and CRI were superior than those of Li 3 Y 3 BaSr(MoO 4 ) 8 :Sm 3+ ,Eu 3+ and Li 3 BaSrLa 3 (WO 4 ) 8 :Eu 3+ . 16,17 These luminescent behaviors further validated the possible applications of La 3 Ga 5 MO 14 (M = Si or Ge): x Sm 3+ phosphors as LED lighting sources.…”

Section: Introductionmentioning

confidence: 88%

Novel Sm³⁺-doped La₃Ga₅MO₁₄ (M = Si or Ge) phosphors for indoor illumination: effects of M cations on photoluminescence

Li,

Ding,

Tang

et al. 2024

Dalton Trans.

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“…Samarium ion (Sm 3+ ) is a key activator ion due to the excited state 4 G 5/2 to the ground state 6 H j/2 (J = 5, 7, 9, and 11), resulting in multi-color emissions from blue to red [29,30]. Various Sm 3+ -doped vanadate complexes, such as K 3 Y(VO 4 ) 2 :Sm 3+ [31], Na 3 La(VO 4 ) 2 :Sm 3+ [1], and LiCa 3 MgV 3 O 12 :Sm 3+ [32] phosphors, have recently been explored. Nonetheless, developing novel Sm 3+ -doped multi-color emitting vanadate materials would be extremely beneficial.…”

Section: Introductionmentioning

confidence: 99%

Multi‐color luminescence of Sm³⁺‐doped Na₂YMg₂V₃O₁₂ phosphor potentially applicable in white‐LEDs

et al. 2023

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A novel multi‐color emitting Na2YMg2V3O12:Sm3+ phosphor was synthesized using a solid‐state reaction, and its crystal structure, luminescence properties, and thermal stability were studied. Charge transfer within the (VO4)3− groups in the Na2YMg2V3O12 host led to a broad emission band between 400 and 700 nm, with a maximum at 530 nm. The Na2Y1−xMg2V3O12:xSm3+ phosphors exhibited a multi‐color emission band under 365 nm near‐ultraviolet (near‐UV) light, consisting of the green emission of the (VO4)3− groups and sharp emission peaks at 570 nm (yellow), 618 nm (orange), 657 nm (red), and 714 nm (deep red) of Sm3+ ions. The optimal doping concentration of Sm3+ ions was found to be 0.05 mol%, and the dipole–dipole (d–d) interaction was primarily responsible for the concentration quenching phenomenon. Using the acquired Na2YMg2V3O12:Sm3+ phosphors, commercial BaMgAl10O17:Eu2+ blue phosphor, and a near‐UV light‐emitting diode (LED) chip, a white‐LED lamp was designed and packaged. It produced bright neutral white light, manifesting a CIE coordinate of (0.314, 0.373), a color rendering index (CRI) of 84.9, and a correlated color temperature (CCT) of 6377 K. These findings indicate the potential of Na2YMg2V3O12:Sm3+ phosphor to be used as a multi‐color component for solid‐state illumination.

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Synthesis and photoluminescence properties of Sm 3+ substituted glaserite-type orthovanadates K 3 Y[VO 4 ] 2 with monoclinic structure

Cited by 40 publications

References 37 publications

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba₂YV₃O₁₁ : Eu³⁺) Phosphor for Hybrid White LEDs

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba₂YV₃O₁₁ : Eu³⁺) Phosphor for Hybrid White LEDs

Novel Sm³⁺-doped La₃Ga₅MO₁₄ (M = Si or Ge) phosphors for indoor illumination: effects of M cations on photoluminescence

Multi‐color luminescence of Sm³⁺‐doped Na₂YMg₂V₃O₁₂ phosphor potentially applicable in white‐LEDs

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Synthesis and photoluminescence properties of Sm 3+ substituted glaserite-type orthovanadates K 3 Y[VO 4 ] 2 with monoclinic structure

Cited by 40 publications

References 37 publications

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba2YV3O11 : Eu3+) Phosphor for Hybrid White LEDs

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba2YV3O11 : Eu3+) Phosphor for Hybrid White LEDs

Novel Sm3+-doped La3Ga5MO14 (M = Si or Ge) phosphors for indoor illumination: effects of M cations on photoluminescence

Multi‐color luminescence of Sm3+‐doped Na2YMg2V3O12 phosphor potentially applicable in white‐LEDs

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Product

Resources

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A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba₂YV₃O₁₁ : Eu³⁺) Phosphor for Hybrid White LEDs

A Novel Highly Efficient Host‐Sensitized Red Emitting (Ba₂YV₃O₁₁ : Eu³⁺) Phosphor for Hybrid White LEDs

Novel Sm³⁺-doped La₃Ga₅MO₁₄ (M = Si or Ge) phosphors for indoor illumination: effects of M cations on photoluminescence

Multi‐color luminescence of Sm³⁺‐doped Na₂YMg₂V₃O₁₂ phosphor potentially applicable in white‐LEDs