Title |
Toward Single Atom Chains with Exfoliated Tellurium
|
---|---|
Published in |
Discover Nano, August 2017
|
DOI | 10.1186/s11671-017-2255-x |
Pubmed ID | |
Authors |
Hugh O. H. Churchill, Gregory J. Salamo, Shui-Qing Yu, Takayuki Hironaka, Xian Hu, Jeb Stacy, Ishiang Shih |
Abstract |
We demonstrate that the atom chain structure of Te allows it to be exfoliated as ultra-thin flakes and nanowires. Atomic force microscopy of exfoliated Te shows that thicknesses of 1-2 nm and widths below 100 nm can be exfoliated with this method. The Raman modes of exfoliated Te match those of bulk Te, with a slight shift (4 cm(-1)) due to a hardening of the A1 and E modes. Polarized Raman spectroscopy is used to determine the crystal orientation of exfoliated Te flakes. These experiments establish exfoliation as a route to achieve nanoscale trigonal Te while also demonstrating the potential for fabrication of single atom chains of Te. |
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Geographical breakdown
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Demographic breakdown
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