KGd(MoO 4) 2:Eu 3+ as a promising red phosphor for light-emitting diode application

A red phosphor KGd(MoO 4) 2:Eu 3+ was prepared by solid-state reaction technique at high temperature. Its photoluminescent property was investigated and the optimum concentration of Eu 3+ doped in the KGd(MoO 4) 2 is 25 mol%. Compared with Y 2O 2S:0.05Eu 3+, the obtained KGd(MoO 4) 2:Eu 3+ shows wid...

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Bibliographic Details
Published inCurrent applied physics Vol. 10; no. 1; pp. 208 - 213
Main Authors Yi, Linghong, Zhou, Liya, Wang, Zhengliang, Sun, Jianhua, Gong, Fuzhong, Wan, Weiping, Wang, Wei
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2010
Subjects
Luminescence
Optical materials
X-ray methods
78.55.Hx
07.85.Jy
X-ray methods
Luminescence
Optical materials
91.60.Mk
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Summary:A red phosphor KGd(MoO 4) 2:Eu 3+ was prepared by solid-state reaction technique at high temperature. Its photoluminescent property was investigated and the optimum concentration of Eu 3+ doped in the KGd(MoO 4) 2 is 25 mol%. Compared with Y 2O 2S:0.05Eu 3+, the obtained KGd(MoO 4) 2:Eu 3+ shows wider excitation band around 400 nm, higher intensity of Eu 3+ 5D 0– 7F 2 emission upon excitation 393 nm, and the CIE chromaticity coordinates ( x = 0.655, y = 0.345) are closer to the standard of National Television Standard Committee (NTSC). The optical properties of KGd(MoO 4) 2:Eu 3+ suggest that it is an efficient red-emitting phosphor for light-emitting diode applications.
ISSN:1567-1739
1878-1675
DOI:10.1016/j.cap.2009.05.025