Abstract
ZnO nanostructures were hydrothermally grown at 90°C on bare and surface-modified graphite. Thermodynamically active sites along the grain boundaries on the graphite surface initiated scattered nucleation of ZnO, leading to the formation of a bunched structure. The uniformity of nucleation and the size distribution of nanorods were controlled by modifying the graphite surface with a seed layer. The seed layer was created on the graphite rod by coating it with ethanolic solution of zinc acetate followed by baking at 300°C. The preformed particles on this layer acted as nucleation center for subsequent growth of ZnO nanorods. The resulting ZnO nanorods were vertically well-aligned single crystals, exhibiting strong band edge luminescence.
Original language | English |
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Pages (from-to) | 715-718 |
Number of pages | 4 |
Journal | Electronic Materials Letters |
Volume | 9 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2013 Nov |
Externally published | Yes |
Keywords
- ZnO
- hydrothermal growth
- nanorod
- surface-modified graphite
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials