Synthesis and Luminescent Properties of a New Green Phosphor CaO:Tb3+,Li+

Abstract:

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CaCO3 was chosen as main raw material and wet chemical method was used to prepare the precursor. The precursor was directly sintered at 1060oC with reducing atmosphere for 3 h to obtain new green CaO:Tb3+ ,Li+ Phosphors. The effects of the content of the doping ions Tb3+ and Li+ on the luminescent properties have been studied. The structure, morphology and luminescent properties of the phosphors were characterized by XRD, laser particle size analyzer, SEM, UV and PL-PLE spectra respectively. The results showed that the CaO:Tb3+,Li+ was a single face-centered cubic crystals, the phosphor particle distributed uniformly, the average size of particle was 2μm. The phosphor has a strong absorptive capacity excited by 282 nm ultraviolet ray, and could emit the strong green light with the wavelength of 543 nm(5D4→7F5). The CaO:Tb3+,Li+ is a new type of green fluorescent material.

Info:

Periodical:

Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang

Pages:

133-136

DOI:

10.4028/www.scientific.net/MSF.663-665.133

Citation:

R. Q. Wang "Synthesis and Luminescent Properties of a New Green Phosphor CaO:Tb3+,Li+", Materials Science Forum, Vols. 663-665, pp. 133-136, 2011

Online since:

November 2010

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$35.00

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