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Orientational Epitaxy of van der Waals Molecular Heterostructures
Lu’an Guo,
Yitao Wang,
Dogan Kaya,
Richard Palmer 
,
Guangde Chen,
Quanmin Guo
,
Guangde Chen,
Quanmin Guo
Nano Letters, Volume: 18, Issue: 8, Pages: 5257 - 5261
Swansea University Author:
Richard Palmer
-
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DOI (Published version): 10.1021/acs.nanolett.8b02238
Abstract
The shape of individual building blocks is an important parameter in bottom-up self-assembly of nanostructured materials. A simple shape change from sphere to spheroid can significantly affect the assembly process due to the modification to the orientational degrees of freedom. When a layer of spher...
| Published in: | Nano Letters |
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| ISSN: | 1530-6984 1530-6992 |
| Published: |
2018
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa41118 |
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| Abstract: |
The shape of individual building blocks is an important parameter in bottom-up self-assembly of nanostructured materials. A simple shape change from sphere to spheroid can significantly affect the assembly process due to the modification to the orientational degrees of freedom. When a layer of spheres is placed upon a layer of spheroids, the strain at the interface can be minimized by the spheroid taking a special orientation. C70 fullerenes represent the smallest spheroids, and their interaction with a sphere-like C60 is investigated. We find that the orientation of the C70 within a close-packed C70 layer can be steered by contacting a layer of C60. This orientational steering phenomenon is potentially useful for epitaxial growth of multilayer van der Waals molecular heterostructures. |
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| Keywords: |
epitaxy; fullerene; graphene; interface; scanning tunnelling microscopy; self-assembly; van der Waals heterostructures |
| College: |
Faculty of Science and Engineering |
| Issue: |
8 |
| Start Page: |
5257 |
| End Page: |
5261 |