Controlled Growth of SnO2 Hierarchical Nanostructures by a Multistep Thermal Vapor Deposition Process

✍ Scribed by Shuhui Sun; Guowen Meng; Gaixia Zhang; Jean-Philippe Masse; Lide Zhang

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 524 KB
• Volume: 13
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/chem.200700448

✦ Synopsis

Abstract

Branched and sub‐branched SnO~2~ hierarchical architectures in which numerous aligned nanowires grew on the surface of nanobelt substrates have been obtained by a multistep thermal vapor deposition route. Branch size and morphology can be controlled by adjusting the temperature and duration of growth. The same approach was used to grow branched ZnO–SnO~2~ heterojunction nanostructures. In addition, the third level of SnO~2~ nanostructures was obtained by repeating the vapor deposition growth process. This technique provides a general, facile, and convenient approach for preparing even more complex nanoarchitectures, and should open up new opportunities for both fundamental research and applications, such as nanobelt‐based three‐dimensional nanodevices.