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The growth of pine-leaf-like hierarchical SnO2 nanostructures |
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| Authors: | Chang Fu Dee Teck Yaw Tiong Binni Varghese Chorng-Haur Sow Yuan-Yee Wong Ishaq Ahmad |
| Affiliation: | 1. Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia , 43600 Bangi, Selangor , Malaysia;2. Department of Material Science and Engineering , National Chiao Tung University , 1001 Ta-Hsueh Road, Hsin-Chu , Taiwan 30010 , ROC;3. Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia , 43600 Bangi, Selangor , Malaysia;4. Department of Physics, Faculty of Science, 2 Science Drive 3 , National University of Singapore , Singapore 117542 , Singapore;5. Department of Material Science and Engineering , National Chiao Tung University , 1001 Ta-Hsueh Road, Hsin-Chu , Taiwan 30010 , ROC;6. National Center for Physics , Quaid-i-Azam University , Islamabad 44000 , Pakistan |
| Abstract: | Pine-leaf-like SnO2 hierarchical nanostructures (NSs) were grown by a two-step vapour transport deposition process with a combination of vapour–solid and vapour–liquid–solid mechanisms at the primary and secondary processes, respectively. This type of hierarchical structure consisted of SnO2 trunk with homo-branching nanowires (NWs). The branched NWs connected the trunk NWs at included angles of 56° and 90° for two different types of hierarchical NSs. Based on the thermodynamic calculation, the formation of branched NWs at those angles are all energetically favourable. |
| Keywords: | tin oxide nanowire branching hierarchical |