Morphological control of SnTe nanostructures by tuning catalyst composition
Article
Article Title | Morphological control of SnTe nanostructures by tuning catalyst composition |
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ERA Journal ID | 123989 |
Article Category | Article |
Authors | Zou, Yichao (Author), Chen, Zhigang (Author), Lin, Jing (Author), Zhou, Xiaohao (Author), Lu, Wei (Author), Drennan, John (Author) and Zou, Jin (Author) |
Journal Title | Nano Research |
Journal Citation | 8 (9), pp. 3011-3019 |
Number of Pages | 9 |
Year | 2015 |
Publisher | Springer |
Place of Publication | China |
ISSN | 1998-0000 |
1998-0124 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s12274-015-0806-y |
Web Address (URL) | http://download.springer.com/static/pdf/823/art%253A10.1007%252Fs12274-015-0806-y.pdf?originUrl=http%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs12274-015-0806-y&token2=exp=1496985911~acl=%2Fstatic%2Fpdf%2F823%2Fart%25253A10.1007%25252Fs12274-015-080 |
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. |
Keywords | catalyst composition; chemical vapor deposition; morphology; thermoelectrics; tin telluride; topological insulator |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Chinese Academy of Sciences, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4159/morphological-control-of-snte-nanostructures-by-tuning-catalyst-composition
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