摘要
采用高分子网络原位合成法制备了ZnO/PVP纳米复合膜,并且通过多种测试手段对ZnO/PVP纳米复合膜的结构、光学性质等进行了分析。实验结果表明,通过XRD,TEM的测试结果可知,以聚乙烯吡咯烷酮(PVP)为模板,原位合成ZnO纳米粒子,具有六角纤锌矿结构;分散性好,粒径分布窄等特点;通过红外吸收谱可知,PVP的基本结构没有被破坏,ZnO与PVP之间存在强的相互作用;从光致发光谱中可以看出由于PVP的引入,使得ZnO纳米粒子可见区发光减弱,紫外发射增强,表明经由PVP钝化ZnO纳米粒子表面,能够有效的改善ZnO纳米粒子的光学性质。
We fabricated an inorganic -polymeric photoluminescent thin film based on ZnO nanoparticles, which were grown directly in the poly （vinylpyrrolidone） （PVP） polymer matrix. The microstmcture and photoluminescence of the thin film were investigated. Result： X - ray diffraction （XRD） and transmission electron microscopy （TEM） indicated that all the ZnO nanoparticles were well separated from each other and were dispersed in the polymeric matrix homogeneously and randomly with a polycrystalline hexagonal wurtzite structure. The shifts of infrared bands for PVP in the hybrid film should be attributed to strong coulombic interaction between ZnO and polymeric matrix. The photoluminescent spectrum （PL） of the ZnO nanoparticles modified by PVP molecules showed markedly enhanced ultraviolet emission and significantly reduced green emission, which was due to the surface passivation of ZnO nanoparticles.
出处
《吉林工程技术师范学院学报》
2009年第11期70-73,共4页
Journal of Jilin Engineering Normal University
基金
吉林省教育厅科学技术研究项目(2007)
关键词
薄膜
氧化锌
聚乙烯吡络烷酮
光致发光
thin film
ZnO
Polyethylene imidacloprid network flavanone
photoluminescence
