Synthesis and Luminescent Properties of a New Green Phosphor CaO:Tb3+,Li+
| Periodical | Materials Science Forum (Volumes 663 - 665) |
|---|---|
| Main Theme | Optoelectronic Materials |
| Edited by | Yuan Ming Huang |
| Pages | 133-136 |
| DOI | 10.4028/www.scientific.net/MSF.663-665.133 |
| Citation | Ren Qing Wang, 2010, Materials Science Forum, 663-665, 133 |
| Online since | November, 2010 |
| Authors | Ren Qing Wang |
| Keywords | Green Phosphor, Spectroscopy, Wet Chemical Method |
| Price | US$ 28,- |
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.
