Characterization and photoluminescence properties of Eu 3+ doped 3CdO-Al 2O 3-8SiO 2 amorphous system for white light-emitting diodes

Yan Cong; Bin Li; Shumei Yue; Yanhong Liu; Wenlian Li; Xiao Jun Wang

doi:10.1021/jp8084414

Characterization and photoluminescence properties of Eu ³⁺ doped 3CdO-Al ₂O ₃-8SiO ₂ amorphous system for white light-emitting diodes

Yan Cong, Bin Li, Shumei Yue, Yanhong Liu, Wenlian Li, Xiao Jun Wang

Biochemistry, Chemistry, & Physics

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

18 Scopus citations

Abstract

A new phosphor, Eu ³⁺ doped 3CdO-Al ₂O ₃-3SiO ₂ (CAS:Eu ³⁺), is prepared by a convenient sol - gel method. Under excitation either into the ⁵L ₆ state with 394 nm or the ⁵D ₂ state with 464 nm, the phosphor gives a red emission at 610 nm originating from the ⁵D ₀ → ⁷F ₂ transition of Eu ³⁺. The luminescence properties compared with YAG:Ce ³⁺ and Y ₂O ₃:Eu ³⁺ are studied. The red emission of CAS:Eu ³⁺ is about 3 times stronger than that of commercial Y ₂O ₃:Eu ³⁺. The high color saturation (the chromaticity index is x = 0.6209, y = 0.3461) and the low thermal quenching effect make phosphor CAS:Eu ³⁺ a promising candidate for the phosphor-converted white LEDs.

Original language	English
Pages (from-to)	493-495
Number of pages	3
Journal	Journal of Physical Chemistry C
Volume	113
Issue number	2
DOIs	https://doi.org/10.1021/jp8084414
State	Published - Jan 15 2009

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title = "Characterization and photoluminescence properties of Eu 3+ doped 3CdO-Al 2O 3-8SiO 2 amorphous system for white light-emitting diodes",

abstract = "A new phosphor, Eu 3+ doped 3CdO-Al 2O 3-3SiO 2 (CAS:Eu 3+), is prepared by a convenient sol - gel method. Under excitation either into the 5L 6 state with 394 nm or the 5D 2 state with 464 nm, the phosphor gives a red emission at 610 nm originating from the 5D 0 → 7F 2 transition of Eu 3+. The luminescence properties compared with YAG:Ce 3+ and Y 2O 3:Eu 3+ are studied. The red emission of CAS:Eu 3+ is about 3 times stronger than that of commercial Y 2O 3:Eu 3+. The high color saturation (the chromaticity index is x = 0.6209, y = 0.3461) and the low thermal quenching effect make phosphor CAS:Eu 3+ a promising candidate for the phosphor-converted white LEDs.",

author = "Yan Cong and Bin Li and Shumei Yue and Yanhong Liu and Wenlian Li and Wang, {Xiao Jun}",

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doi = "10.1021/jp8084414",

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TY - JOUR

T1 - Characterization and photoluminescence properties of Eu 3+ doped 3CdO-Al 2O 3-8SiO 2 amorphous system for white light-emitting diodes

AU - Cong, Yan

AU - Li, Bin

AU - Yue, Shumei

AU - Liu, Yanhong

AU - Li, Wenlian

AU - Wang, Xiao Jun

PY - 2009/1/15

Y1 - 2009/1/15

N2 - A new phosphor, Eu 3+ doped 3CdO-Al 2O 3-3SiO 2 (CAS:Eu 3+), is prepared by a convenient sol - gel method. Under excitation either into the 5L 6 state with 394 nm or the 5D 2 state with 464 nm, the phosphor gives a red emission at 610 nm originating from the 5D 0 → 7F 2 transition of Eu 3+. The luminescence properties compared with YAG:Ce 3+ and Y 2O 3:Eu 3+ are studied. The red emission of CAS:Eu 3+ is about 3 times stronger than that of commercial Y 2O 3:Eu 3+. The high color saturation (the chromaticity index is x = 0.6209, y = 0.3461) and the low thermal quenching effect make phosphor CAS:Eu 3+ a promising candidate for the phosphor-converted white LEDs.

AB - A new phosphor, Eu 3+ doped 3CdO-Al 2O 3-3SiO 2 (CAS:Eu 3+), is prepared by a convenient sol - gel method. Under excitation either into the 5L 6 state with 394 nm or the 5D 2 state with 464 nm, the phosphor gives a red emission at 610 nm originating from the 5D 0 → 7F 2 transition of Eu 3+. The luminescence properties compared with YAG:Ce 3+ and Y 2O 3:Eu 3+ are studied. The red emission of CAS:Eu 3+ is about 3 times stronger than that of commercial Y 2O 3:Eu 3+. The high color saturation (the chromaticity index is x = 0.6209, y = 0.3461) and the low thermal quenching effect make phosphor CAS:Eu 3+ a promising candidate for the phosphor-converted white LEDs.

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Characterization and photoluminescence properties of Eu ³⁺ doped 3CdO-Al ₂O ₃-8SiO ₂ amorphous system for white light-emitting diodes

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