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Tip-triggered Thermal Cascade Manipulation of Magic Number Gold–Fullerene Clusters in the Scanning Tunnelling Microscope
- Source :
- Nano Letters. 17:6171-6176
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- We demonstrate cascade manipulation between magic number gold-fullerene hybrid clusters by channelling thermal energy into a specific reaction pathway with a trigger from the tip of a scanning tunnelling microscope (STM). The (C-60)(m)-Au-n clusters, formed via self-assembly on the Au(111) surface, consist of n Au atoms and m C-60 molecules; the three smallest stable clusters are (C-60)(7)-Au-19, (C-60)(10)-Au-35, and (C-60)(12)-Au-49. The manipulation cascade was initiated by driving the STM tip into the cluster followed by tip retraction. Temporary, partial fragmentation of the cluster was followed by reorganization. Self-selection of the correct numbers of Au atoms and C-60 molecules led to the formation of the next magic number cluster. This cascade manipulation is efficient and facile with an extremely high selectivity. It offers a way to perform on-surface tailoring of atomic and molecular clusters by harnessing thermal energy, which is known as the principal enemy of the quest to achieve ultimate structural control with the STM.
- Subjects :
- Fullerene
Microscope
Chemistry
Physics
Mechanical Engineering
Bioengineering
02 engineering and technology
General Chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Channelling
01 natural sciences
law.invention
Chemical physics
law
Cascade
0103 physical sciences
Cluster (physics)
General Materials Science
Self-assembly
Atomic physics
Scanning tunneling microscope
010306 general physics
0210 nano-technology
Quantum tunnelling
Subjects
Details
- ISSN :
- 15306992 and 15306984
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Nano Letters
- Accession number :
- edsair.doi.dedup.....8bd65ec255e9cdf12acbe86623288e79