Blue-emitting phosphor M2B5O9Cl: Eu 2+ (MSr, Ca) for white LEDs

Chongfeng Guo; Yan Xu; Xu Ding; Ming Li; Jie Yu; Zhaoyu Ren; Jintao Bai

doi:10.1016/j.jallcom.2010.10.032

Blue-emitting phosphor M₂B₅O₉Cl: Eu ²⁺ (MSr, Ca) for white LEDs

Chongfeng Guo^*, Yan Xu, Xu Ding, Ming Li, Jie Yu, Zhaoyu Ren, Jintao Bai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

Eu²⁺ doped M₂B₅O₉Cl (MCa, Sr) phosphors were prepared by a solid-state reaction method. Luminescent properties of as-synthesized phosphors were investigated under the excitation of near-ultraviolet (n-UV) light. Photoluminescence (PL) spectra revealed a blue emission band, and the emission band shifted to a longer wavelength region as Ca²⁺ substituted Sr²⁺. The photoluminescence excitation (PLE) spectra of M₂B₅O₉Cl: Eu²⁺ (MCa, Sr) showed broadband absorptions in the n-UV region. Moreover, the as-prepared phosphors were also compared with commercial BaMgAl ₁₀O₁₇: Eu²⁺ (BAM) blue phosphor. The present phosphors showed a narrower full width at half-maximum and higher PL intensity than the reference BAM under the n-UV light excitation.

Original language	English
Pages (from-to)	L38-L41
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	4
DOIs	https://doi.org/10.1016/j.jallcom.2010.10.032
Publication status	Published - 28 Jan 2011

Keywords

Luminescence
Optical materials
Solid state reactions

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10.1016/j.jallcom.2010.10.032

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title = "Blue-emitting phosphor M2B5O9Cl: Eu 2+ (MSr, Ca) for white LEDs",

abstract = "Eu2+ doped M2B5O9Cl (MCa, Sr) phosphors were prepared by a solid-state reaction method. Luminescent properties of as-synthesized phosphors were investigated under the excitation of near-ultraviolet (n-UV) light. Photoluminescence (PL) spectra revealed a blue emission band, and the emission band shifted to a longer wavelength region as Ca2+ substituted Sr2+. The photoluminescence excitation (PLE) spectra of M2B5O9Cl: Eu2+ (MCa, Sr) showed broadband absorptions in the n-UV region. Moreover, the as-prepared phosphors were also compared with commercial BaMgAl 10O17: Eu2+ (BAM) blue phosphor. The present phosphors showed a narrower full width at half-maximum and higher PL intensity than the reference BAM under the n-UV light excitation.",

keywords = "Luminescence, Optical materials, Solid state reactions",

author = "Chongfeng Guo and Yan Xu and Xu Ding and Ming Li and Jie Yu and Zhaoyu Ren and Jintao Bai",

year = "2011",

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doi = "10.1016/j.jallcom.2010.10.032",

language = "English",

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TY - JOUR

T1 - Blue-emitting phosphor M2B5O9Cl

T2 - Eu 2+ (MSr, Ca) for white LEDs

AU - Guo, Chongfeng

AU - Xu, Yan

AU - Ding, Xu

AU - Li, Ming

AU - Yu, Jie

AU - Ren, Zhaoyu

AU - Bai, Jintao

PY - 2011/1/28

Y1 - 2011/1/28

N2 - Eu2+ doped M2B5O9Cl (MCa, Sr) phosphors were prepared by a solid-state reaction method. Luminescent properties of as-synthesized phosphors were investigated under the excitation of near-ultraviolet (n-UV) light. Photoluminescence (PL) spectra revealed a blue emission band, and the emission band shifted to a longer wavelength region as Ca2+ substituted Sr2+. The photoluminescence excitation (PLE) spectra of M2B5O9Cl: Eu2+ (MCa, Sr) showed broadband absorptions in the n-UV region. Moreover, the as-prepared phosphors were also compared with commercial BaMgAl 10O17: Eu2+ (BAM) blue phosphor. The present phosphors showed a narrower full width at half-maximum and higher PL intensity than the reference BAM under the n-UV light excitation.

AB - Eu2+ doped M2B5O9Cl (MCa, Sr) phosphors were prepared by a solid-state reaction method. Luminescent properties of as-synthesized phosphors were investigated under the excitation of near-ultraviolet (n-UV) light. Photoluminescence (PL) spectra revealed a blue emission band, and the emission band shifted to a longer wavelength region as Ca2+ substituted Sr2+. The photoluminescence excitation (PLE) spectra of M2B5O9Cl: Eu2+ (MCa, Sr) showed broadband absorptions in the n-UV region. Moreover, the as-prepared phosphors were also compared with commercial BaMgAl 10O17: Eu2+ (BAM) blue phosphor. The present phosphors showed a narrower full width at half-maximum and higher PL intensity than the reference BAM under the n-UV light excitation.

KW - Luminescence

KW - Optical materials

KW - Solid state reactions

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DO - 10.1016/j.jallcom.2010.10.032

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VL - 509

SP - L38-L41

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

IS - 4

ER -

Blue-emitting phosphor M₂B₅O₉Cl: Eu ²⁺ (MSr, Ca) for white LEDs

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Keywords

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