Zou, Yichao and Chen, Zhigang 
ORCID: https://orcid.org/0000-0002-9309-7993 and Lin, Jing and Zhou, Xiaohao and Lu, Wei and Drennan, John and Zou, Jin
(2015)
Morphological control of SnTe nanostructures by tuning catalyst composition.
Nano Research, 8 (9).
pp. 3011-3019.
ISSN 1998-0124
Abstract
A method of controlling the morphology of SnTe nanostructures produced by a simple chemical vapor deposition is presented, in which Au-containing catalysts with different Au concentrations are used to induce specific growth behavior. Triangular SnTe nanoplates with a {100} dominated surface and {100}, {111} and {120} side facets were induced by AuSn catalysts, whereas <010> SnTe nanowires with four nonpolar {100} side-facets were produced using Au5Sn catalysts. Through detailed structural and chemical characterization, coupled with surface energy calculations, it is found that nanowire growth is thermodynamically controlled via a vapor-solid-solid growth mechanism, whereas nanoplate growth is kinetically controlled via a vapor-liquid-solid growth mechanism. Therefore, this study provides a fundamental understanding of the catalyst’s role in the growth of IV-VI compound nanostructures.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Published version cannot be displayed due to copyright restrictions. |
| Faculty/School / Institute/Centre: | No Faculty |
| Faculty/School / Institute/Centre: | No Faculty |
| Date Deposited: | 09 Jun 2017 05:31 |
| Last Modified: | 27 Jun 2017 02:25 |
| Uncontrolled Keywords: | catalyst composition; chemical vapor deposition; morphology; thermoelectrics; tin telluride; topological insulator |
| Fields of Research (2008): | 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030302 Nanochemistry and Supramolecular Chemistry |
| Socio-Economic Objectives (2008): | E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences |
| Identification Number or DOI: | https://doi.org/10.1007/s12274-015-0806-y |
| URI: | http://eprints.usq.edu.au/id/eprint/31681 |
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