Effect of B<sub>2</sub>O<sub>3</sub> on the Photoluminescence Properties of Sr<sub>4</sub>Al<sub>14</sub>O<sub>25</sub>: Eu<sup>2+</sup>, Dy<sup>3+</sup> Phosphor: Fid-Bau Portal

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Effect of B₂O₃ on the Photoluminescence Properties of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ Phosphor

Thube, Dilip R. / Kang, Sukmin / Ryu, Hojin

An efficient blue-green phosphor, Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺, was prepared by solid-state synthesis method. B₂O₃ was used as a flux for the synthesis of phosphorous materials. The different mol % of B₂O₃ was employed during the synthesis. X-ray powder diffraction (XRD) confirmed the formation of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ phosphor in an orthorhombic phase. The synthesized phosphorous materials were further investigated by XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence studies. The phosphor, Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ shows broad band ultraviolet (UV) excited luminescence in the blue-green region (λ_max= 491 nm) due to the transition from the 4f⁶ 5d¹ to the 4f⁷ level of the Eu²⁺ ion. The phosphorous material with 75 mol % of B₂O₃ shows high brightness and long persistent luminescence whereas the phosphorous material without B₂O₃ shows no emission and persistence of luminescence.

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Effect of B₂O₃ on the Photoluminescence Properties of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ Phosphor

Thube, Dilip R. / Kang, Sukmin / Ryu, Hojin

An efficient blue-green phosphor, Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺, was prepared by solid-state synthesis method. B₂O₃ was used as a flux for the synthesis of phosphorous materials. The different mol % of B₂O₃ was employed during the synthesis. X-ray powder diffraction (XRD) confirmed the formation of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ phosphor in an orthorhombic phase. The synthesized phosphorous materials were further investigated by XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence studies. The phosphor, Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ shows broad band ultraviolet (UV) excited luminescence in the blue-green region (λ_max= 491 nm) due to the transition from the 4f⁶ 5d¹ to the 4f⁷ level of the Eu²⁺ ion. The phosphorous material with 75 mol % of B₂O₃ shows high brightness and long persistent luminescence whereas the phosphorous material without B₂O₃ shows no emission and persistence of luminescence.

Effect of B₂O₃ on the Photoluminescence Properties of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ Phosphor

Thube, Dilip R. / Kang, Sukmin / Ryu, Hojin

An efficient blue-green phosphor, Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺, was prepared by solid-state synthesis method. B₂O₃ was used as a flux for the synthesis of phosphorous materials. The different mol % of B₂O₃ was employed during the synthesis. X-ray powder diffraction (XRD) confirmed the formation of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ phosphor in an orthorhombic phase. The synthesized phosphorous materials were further investigated by XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence studies. The phosphor, Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ shows broad band ultraviolet (UV) excited luminescence in the blue-green region (λ_max= 491 nm) due to the transition from the 4f⁶ 5d¹ to the 4f⁷ level of the Eu²⁺ ion. The phosphorous material with 75 mol % of B₂O₃ shows high brightness and long persistent luminescence whereas the phosphorous material without B₂O₃ shows no emission and persistence of luminescence.

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Title:

Effect of B₂O₃ on the Photoluminescence Properties of Sr₄Al₁₄O₂₅: Eu²⁺, Dy³⁺ Phosphor

Contributors:

Thube, Dilip R. (author) / Kang, Sukmin (author) / Ryu, Hojin (author)

Published in:

Geosystem Engineering ; 12 ; 17-20

Publication date:

2009-06-01

Size:

4 pages

ISSN:

1226-9328 , 2166-3394

DOI:

https://doi.org/10.1080/12269328.2009.10541294

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Phosphor , solid-state reaction , photoluminescence , effect of B2O3 flux

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