Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring
Here we show that within a single polyhedral metal oxide nanoparticle a nanometer-scale lateral or vertical sliding of a small metal top contact (e.g., <50 nm) leads to a 10-fold change in current rectification ratios. Electron tunnelling imaging and constant-force current-potential analysis...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2018
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| Online Access: | https://pubs.acs.org/doi/ipdf/10.1021/acsnano.8b02934 http://hdl.handle.net/20.500.11937/69877 |
| _version_ | 1848762157182746624 |
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| author | Vogel, Yan Zhang, Jinyang Darwish, Nadim Ciampi, Simone |
| author_facet | Vogel, Yan Zhang, Jinyang Darwish, Nadim Ciampi, Simone |
| author_sort | Vogel, Yan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Here we show that within a single polyhedral metal oxide nanoparticle a nanometer-scale lateral or vertical sliding of a small metal top contact (e.g., <50 nm) leads to a 10-fold change in current rectification ratios. Electron tunnelling imaging and constant-force current-potential analysis in atomic force microscopy demonstrate that within an individual p-n rectifier (a Cu2O nanocrystal on silicon) the degree of current asymmetry can be modulated predictably by a set of geometric considerations. We demonstrate the concept of a single nanoscale entity displaying an in-built range of discrete electrical signatures and address fundamental questions in the direction of "landing" contacts in single-particle diodes. This concept is scalable to large 2D arrays, up to millimetres in size, with implications in the design and understanding of nanoparticle circuitry. |
| first_indexed | 2025-11-14T10:43:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-69877 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:43:06Z |
| publishDate | 2018 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-698772023-06-07T04:32:01Z Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring Vogel, Yan Zhang, Jinyang Darwish, Nadim Ciampi, Simone Here we show that within a single polyhedral metal oxide nanoparticle a nanometer-scale lateral or vertical sliding of a small metal top contact (e.g., <50 nm) leads to a 10-fold change in current rectification ratios. Electron tunnelling imaging and constant-force current-potential analysis in atomic force microscopy demonstrate that within an individual p-n rectifier (a Cu2O nanocrystal on silicon) the degree of current asymmetry can be modulated predictably by a set of geometric considerations. We demonstrate the concept of a single nanoscale entity displaying an in-built range of discrete electrical signatures and address fundamental questions in the direction of "landing" contacts in single-particle diodes. This concept is scalable to large 2D arrays, up to millimetres in size, with implications in the design and understanding of nanoparticle circuitry. 2018 Journal Article http://hdl.handle.net/20.500.11937/69877 10.1021/acsnano.8b02934 https://pubs.acs.org/doi/ipdf/10.1021/acsnano.8b02934 http://purl.org/au-research/grants/arc/DE160100732 http://purl.org/au-research/grants/arc/DE160101101 American Chemical Society fulltext |
| spellingShingle | Vogel, Yan Zhang, Jinyang Darwish, Nadim Ciampi, Simone Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring |
| title | Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring |
| title_full | Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring |
| title_fullStr | Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring |
| title_full_unstemmed | Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring |
| title_short | Switching of Current Rectification Ratios within a Single Nanocrystal by Facet-Resolved Electrical Wiring |
| title_sort | switching of current rectification ratios within a single nanocrystal by facet-resolved electrical wiring |
| url | https://pubs.acs.org/doi/ipdf/10.1021/acsnano.8b02934 https://pubs.acs.org/doi/ipdf/10.1021/acsnano.8b02934 https://pubs.acs.org/doi/ipdf/10.1021/acsnano.8b02934 http://hdl.handle.net/20.500.11937/69877 |