A potential red phosphor ZnMoO{sub 4}:Eu{sup 3+} for light-emitting diode application

Journal Article · Sun Jun 15 04:00:00 EDT 2008 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2008.03.005· OSTI ID:21128316

Jianshe, Wei; Fuzhong, Gong; Junli, Huang; Linghong, Yi ^[1]

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1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004 (China)

Motivated by the need for new red phosphors for solid-state lighting applications Eu{sup 3+}-doped ZnMoO{sub 4} was prepared by solid-state reaction and its photoluminescence properties were investigated. Compared with Ca{sub 0.80}MoO{sub 4}:Eu{sub 0.20}{sup 3+}, the obtained Zn{sub 0.80}MoO{sub 4}:Eu{sub 0.20}{sup 3+} phosphor shows a stronger excitation band near 400 nm as well as enhanced red emissions (under 393 nm excitation). The strong red-emission lines at 616 nm correspond to the forced electric dipole {sup 5}D{sub 0}{yields}{sup 7}F{sub 2} transitions on Eu{sup 3+}. The chromaticity coordinates (x=0.63, y=0.37) are close to the standard of National Television Standard Committee (NTSC). The optical properties suggest that Zn{sub 0.80}MoO{sub 4}:Eu{sub 0.20}{sup 3+} is an efficient red-emitting phosphor for LED applications. - Graphical abstract: Motivated by the need for new red phosphors for solid-state lighting applications Eu{sup 3+}-doped ZnMoO{sub 4} was prepared by solid-state reaction and its photoluminescence properties were investigated. Upon excitation with near UV light, the phosphor showed strong red-emission lines at around 616 nm and the optical properties study suggests that it is an efficient red-emitting phosphor for LED application.

• OSTI ID: 21128316
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 6 Vol. 181; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
DOPED MATERIALS
ELECTRIC DIPOLES
EUROPIUM IONS
EXCITATION
LIGHT EMITTING DIODES
MOLYBDATES
OPTICAL PROPERTIES
PHOSPHORS
PHOTOLUMINESCENCE
X-RAY DIFFRACTION
ZINC COMPOUNDS