Synthesis of ZnO nanoflower arrays on patterned sapphire by aqueous solutions
Patterned sapphire with frustum of a cone shape is designed to grow ZnO nanoflower arrays in this paper. The ZnO nanostructures are grown by two-step approach, including the synthesis of homo-seed layer and the growth of ZnO nanostructures in aqueous solutions at low temperature. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM). ZnO nanostructures are grown along the upper base and sidewall region on the frustum of a cone shaped sapphire forming flower-like morphology as a whole. Micro-Raman spectrum shows the nanoflower arrays are under low tensile stress. Meanwhile, the ZnO nanoflower arrays grown on patterned sapphire show high photocatalytic activity. The large-scale periodical flower-like characteristics make them also potential applications in ultra-sensitive gas sensing, exciton based photonic devices.
patterned sapphire ZnO nanostructures aqueous solutions
Zhangwen Mao Lifang Du Danyang Hu Yong Wang Naisen Yu
School of Physics and Materials Engineering,Dalian Nationalities UniversityDalian, China School of Science, Changchun University ofScience and Technology, School of Science,Changchun, China School of Science, Changchun University of Science and Technology, School of Science, Changchun, Chi
国际会议
2012 International Conference on Optoelectronics and Microelectronics(2012光电子与微电子国际学术会议 2012 ICOM)
长春
英文
397-399
2012-08-23（万方平台首次上网日期，不代表论文的发表时间）