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The high pressure phase transformation behavior of silicon nanowires

Huston, Larissa; Lugstein, A.; Williams, J. S.; Bradby, Jodie


Si nanowires of 80–150 nm and 200–250 nm diameter are pressurized up to 22 GPa using a diamond anvil cell. Raman and x-ray diffraction data were collected during both compression and decompression. Electron microscopy images reveal that the nanowires retain a nanowire-like morphology (after high pressure treatment). On compression, dc-Si was observed to persist at pressures up to 19 GPa compared to 11 GPa for bulk-Si. On decompression, the metallic b-Sn phase was found to be more stable...[Show more]

CollectionsANU Research Publications
Date published: 2018-09-18
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.5048033
Access Rights: Open Access


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