吲哚啉螺苯并吡喃表面包覆SrAl_2O_4:(Eu^(2+),Dy^(3+))发光粉  

INDOLINE SPIROPYRANS SURFACE COATING OF SrAl_2O_4:(Eu^(2+),Dy^(3+)) PHOSPHORS

作　　者：喻胜飞[1] 

机构地区：[1]韶关学院化学与环境工程学院,广东韶关512005

出　　处：《硅酸盐学报》2010年第2期201-205,共5页Journal of The Chinese Ceramic Society

摘　　要：以吲哚啉螺苯并吡喃(indoline spiropyrans,SP)和SrAl2O4:(Eu2+,Dy3+)(SAO-ED)发光粉为原料,采用界面配位键合方法在SAO-ED发光粉的表面包覆SP制备了SP/SAO-ED复合发光粉。通过X射线衍射、X射线光电子能谱、Fourier红外光谱表征了SP/SAO-ED复合发光粉的晶体结构和表面涂层组成;用紫外光谱、激发和发射光谱分析了该复合发光粉的光致发光性能和光致变色性能。结果表明:SP/SAO-ED复合发光粉由SAO-ED表面的金属离子与SP杂环上的N原子配位结合而成;该复合发光粉不但具有SAO-ED发光粉的晶体结构和光致发光性能,还具有SP的光致变色性能。Using indoline spiropyrans （SP） and SrAl2O4：（Eu2＋,Dy3＋） （SAO-ED） phosphor as raw materials,a SP/SAO-ED composite phosphor powder was formed on the SAO-ED phosphor surface coated with SP by an interfacial coordination chemistry coating method.The crystal phase and surface configuration of the SP/SAO-ED composite phosphor powder were characterized via X-ray diffraction,X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy.The photoluminescent and photochromic properties of the SP/SAO-ED composite phosphor powder were investigated by ultraviolet,excitation and emission spectra.The results show that the SP/SAO-ED hybrid coating consists of N atom of SP ring coordinated with metal ions on the surface of SAO-ED powder particles.It is also found that the composite phosphor powder keeps the crystal structure of SAO-ED phosphor,and has double function of photochromic and photoluminescent properties.

关 键 词：吲哚啉螺苯并吡喃 发光粉 光致变色 光致发光 表面包覆 

分 类 号：TQ422[化学工程]