Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1553077 | Superlattices and Microstructures | 2015 | 12 Pages |
Abstract
The uniform and regular hierarchical flower-like ZnO nanostructures assembled by nanosheets have been controllably synthesized by a facile and efficient solution route on a large scale without using any templates, substrate or seed layers. The results of the experiment indicated that reaction temperature, time and the molar ratio of Zn2+/OHâ had a strong influence on the formation of the hierarchical flower-like ZnO nanostructures. ZnO with flower-like nanostructures can be controllable synthesized with appropriate temperature, time and the molar ratio of Zn2+/OHâ. The optical properties of the as-synthesized ZnO were investigated by UV-Vis absorption and photoluminescence. Consequently, the value of the band gap for this kind of ZnO crystals was calculated to be 3.26Â eV and the ZnO nanostructures possess a relatively strong UV emission, violet emission and a blue emission. Moreover, The ZnO may be tempting for further application such as photocatalyst, gas sensors and UV lasers. The facile and efficient solution route has high potentials to synthesize ZnO crystals on a large scale for industry application.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Qun Ma, Yongqian Wang, Junhan Kong, Hanxiang Jia, Zhengshu Wang,