High-yield self-assembly of flower-like ZnO nanostructures.
High-yield three-dimensional (3D) flower-like nanostructures self-assembled from 1 D ZnO nanorods and nanotubes are experimentally demonstrated. The Zn and O terminated crystal planes of ZnO nanorods results in positively and negatively charged top (001) and bottom (00-1) surfaces, respectively. The nanorods self-assembled into 3D nanostructures via the electrostatic interaction between the crystal planes with opposite charges. Moreover, on the basis of the different stability of polar and nonpolar planes in wurtzite-type ZnO, the nanorods based 3D nanostructures transformed into nanotubes based ones spontaneously. This provides a new approach to prepare multi-dimensional materials without the necessity to employ any external intervention.
Jiang
Lei
L
Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, PR China.
Feng
Xinjian
X
Zhai
Jin
J
Jin
Meihua
M
Song
Yanlin
Y
Zhu
Daoben
D
D003460:Crystallization; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D043942:Nanotubes / Q000737:chemistry / Q000648:ultrastructure; D055672:Static Electricity; D015034:Zinc Oxide / Q000737:chemistry*
D015034:Zinc Oxide