title: [Rapid synthesis and fluorescent spectra of the phosphor CaS:Eu2+ in a microwave field].
abstract: In this paper, the phosphors with CaS as the host and doped with Eu2+ ion were synthesized in a microwave field at the first time. The influence of the different concentrations of Eu2+ ion on fluorescent properties of the phosphors CaS:Eu2+ was discussed. The experimental results of SEM show that the crystallite structures of the CaS:Eu2+ with different shapes (such as cubic, spherical and rod) and different crystal sizes (100-1,500 nm), for example, nano-scale, submicron-scale or micron-scale can be obtained when doping different concentrations of Eu2+ ion. The fluorescent intensity of the sphere phosphor CaS:Eu2+ is the strongest under the excitation at 254 nm.
authors.affiliation: School of Chemical Engineering, Zhongshan University, 510275 Guangzhou.
authors.forename: M
authors.initials: M
authors.lastname: Zhang
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: C
authors.initials: C
authors.lastname: Yan
mesh_terms: D002133:Calcium Sulfate / Q000737:chemistry*; D003460:Crystallization; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D008872:Microwaves; D010758:Phosphorus / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D014961:X-Ray Diffraction
chemical_list: D010758:Phosphorus; D005063:Europium; D002133:Calcium Sulfate