CuS@PVK复合材料的制备及其光学性能  

Preparation of CuS@PVK and Research of Their Optical Properties

作　　者：刘金权[1] 李曹龙[2] 

机构地区：[1]盐城卫生职业技术学院,江苏盐城224005 [2]中国药科大学理学院,江苏南京211169

出　　处：《材料科学与工程学报》2014年第5期690-695,共6页Journal of Materials Science and Engineering

摘　　要：本文分别以吡啶/水混合溶剂和甲醇为分散体系,聚乙烯吡咯烷酮(PVP)等为表面活性剂,采用分散聚合的方法,首先制备出聚乙烯基咔唑(PVK)纳米球。再通过半导体材料CuS对PVK进行掺杂制备出CuS@PVK复合材料。采用扫描电子显微镜(SEM)、粉末XRD、紫外光谱(UV)、荧光光谱(Fluorescence spectrum)等对其进行表征。结果显示该复合材料降低了纯PVK的荧光性能,有利于空穴的传递,增强了复合物的空穴导电能力。Polyvinyl carbazole（PVK）nanospheres were successfully prepared by the dispersionpolymerization method with using PVP as the surfactant in the different dispersion systems,such as methanol or mixture solvent of pyridine and water.Then,the composite material CuS@PVK was also synthesized by doping the inorganic semiconductor CuS into the PVK nanospheres.Scanning electron microscopy（SEM）,Xray powder diffraction（XRD）,UV-Vis and fluorescent spectrum（PL）were used to investigate the morphology,the phase structure and the photo absorption property of the PVK and [e-mail] show that the fluorescence properties of the composite material CuS@PVK was lower than the PVK,which was ascribed to the photoinduced electrons and holes on the PVK sphere to migrate to the surface of CuS.

关 键 词：分散聚合 PVK 光导材料 CuS@PVK 

分 类 号：TB381[一般工业技术—材料科学与工程]