Controlled growth of ZnO nanorods by polymer template and their photoluminescence properties
Controlled growth of ZnO nanorods by polymer template and their photoluminescence properties作者机构:Institute of Material PhysicsTianjin University of Technology Tianjin Key Laboratory for Optoelectronic Materials and DevicesKey Laboratory of Display Materials and Photoelectric Devices of Ministry of EducationTianjin 300384China Institute of Modern OpticsNankai UniversityTianjin 300171China School of Electronic and Information EngineeringTianjin UniversityTianjin 300172China
出 版 物:《Science China(Technological Sciences)》 (中国科学(技术科学英文版))
年 卷 期:2009年第52卷第4期
页 面:888-892页
核心收录:
学科分类:07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0702[理学-物理学]
基 金:Supported by Tianjin Natural Science Foundation (Grant Nos. 06TXTJJC14600 and 07JCYBJC06400) Tianjin Education Committee Science and Technology De-velopment Foundation
主 题:ZnO nanorods polymer soft-template PVA photoluminescence spectrum
摘 要:A large amount of one-dimensional ZnO nanorods with diameters in 15―50 nm aligned in radial cluster were successfully synthesized by polar polymer polyvinyl alcohol (PVA) as soft-template. The growth of ZnO nanorods was controlled by changing annealing temperature. The evolution of the morphology and microstructure was investigated by scanning electron microscope, transmission electron micro- scope and X-ray diffraction. It is shown that ZnO nanorods tend to be uniform and the crystallization is gradually improved with the temperature increasing from 400℃ to 700℃. The photoluminescence spectra of products show a strong ultra violet emission and relatively weak defect emissions. The sharp strong emission peak at 354 nm owing to the inter-band transition indicates the extraordinary photoluminescence property of ZnO nanorods.