Ex) Article Title, Author, Keywords
New Physics: Sae Mulli 2013; 63: 945-949
Published online August 30, 2013 https://doi.org/10.3938/NPSM.63.945
Copyright © New Physics: Sae Mulli.
Sang Min LEE, Tae Hyun KIM, Je Woong HWANG, Soung Soo YI*
Department of Materials Science Engineering. Silla University, Busan 617-736, Korea
The conventional solid-state reaction method has been used to synthesize (Ca0.96-xBax)MoO4:Eu0.043+ phosphors. The effects of the host materials and changes in the sintering temperature on the microstructures of the (Ca0.96-xBax)MoO4:Eu0.043+ phosphors were measured by using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM). The luminescent characteristics were characterized by using photoluminescence excitation (PLE) and emission (PL) measurements. The dependences of various optical and morphological properties of the prepared materials on the host materials and on changes in the sintering temperature are discussed. Incorporation of Ba2+ ions into the (Ca0.96-xBax)MoO4:Eu0.043+ phosphors changed the crystallinity, the particle size and, hence, the luminescence properties, and the optimum concentration in the case of Ba2+ ions was found to be 0.25 mol. The photoluminescence intensity changed when the host materials and the sintering temperatures were changed.
Keywords: (Ca0.96-xBax)MoO4:Eu0.043+, Crystallinity, Surface Morphology, Red Phosphor, Photoluminescence