title: Controllable synthesis and photoluminescence properties of ZnO nanorod and nanopin arrays.
abstract: Well-aligned ZnO nanorods and nanopins are synthesized on a silicon substrate using a one-step simple thermal evaporation of a mixture of zinc and zinc acetate powder under controlled conditions. A self-assembled ZnO buffer layer was first obtained on the Si substrate. The structure and morphology of the as-synthesized ZnO nanorod and nanopin arrays are characterized using X-ray diffraction, and scanning and transmission electron microscopies, energy-dispersive X-ray spectroscopy, and photoluminescence spectroscopy. The influence of the background atmosphere on the two ZnO nanostructures has been studied. Two different growth mechanisms are mentioned to interpret the formation of ZnO nanorod and nanopin arrays in our work. The room-temperature PL features the ZnO nanorods exhibit only sharp and strong ultraviolet (UV) emission emissions, which confirms the better crystalline and optical quality than the ZnO nanopins.
authors.affiliation: School of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui 230009, People's Republic of China.
authors.forename: Song
authors.initials: S
authors.lastname: Yin
authors.forename: Yiqing
authors.initials: Y
authors.lastname: Chen
authors.forename: Yong
authors.initials: Y
authors.lastname: Su
authors.forename: Chong
authors.initials: C
authors.lastname: Jia
authors.forename: Qingtao
authors.initials: Q
authors.lastname: Zhou
authors.forename: Sen
authors.initials: S
authors.lastname: Li
authors.forename: Minjun
authors.initials: M
authors.lastname: Xin
authors.forename: Weihai
authors.initials: W
authors.lastname: Kong
authors.forename: Xinhua
authors.initials: X
authors.lastname: Zhang
authors.forename: Youshen
authors.initials: Y
authors.lastname: Lü