Preparation of Luminescent Tb^3＋ Doped CaO Green Phosphor  

作　　者：Renqing Wang 

机构地区：[1]New Energy Technology ＆ Application Research Center, Jiangxi University of Finance ＆ Economics, Nanchang, Jiangxi 330013,China

出　　处：《Journal of Chemistry and Chemical Engineering》2011年第2期146-149,共4页化学与化工（英文版）

摘　　要：CaCO3 was chosen as main raw material and Solid State method was used to prepare the sample. The precursor was directly sintered at 1100 ℃ with reducing atmosphere for 3 h to obtain new green CaO：Tb^3＋, Li^＋ Phosphors. The effects of the content of the doping ions Tb^3＋ on the luminescent properties have been studied. The structure, morphology and luminescent properties of the phosphors were characterized by XRD, SEM, UV and PL-PLE spectra respectively. The results showed that the CaO：Tb^3＋, Li^＋ was a single face-centered cubic crystals, the phosphor particle distributed uniformly. 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：Tb^3＋, Li^＋ is a new type of green fluorescent material.

关 键 词：SPECTROSCOPY solid state method green phosphors 

分 类 号：TQ171.112[化学工程—玻璃工业] TN104.3[化学工程—硅酸盐工业]