Projects per year
Abstract
The rate of desorption of chemisorbed chlorobenzene molecules from the Si(111)-7 × 7 surface, induced by nonlocal charge injection from an STM tip, depends on the surface temperature. Between 260 and 313 K, we find an Arrhenius thermal activation energy of 450 ± 170 meV, consistent with the binding energy of physisorbed chlorobenzene on the same surface. Injected electrons excite the chlorobenzene molecule from the chemisorption state to an intermediate physisorption state, followed by thermal desorption. We find a second thermal activation energy of 21 ± 4 meV in the lower temperature region between 77 and 260 K, assigned to surface phonon excitation.
Original language | English |
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Pages (from-to) | 3551-3554 |
Number of pages | 4 |
Journal | Journal of Physical Chemistry Letters |
Volume | 5 |
Issue number | 20 |
Early online date | 29 Sept 2014 |
DOIs | |
Publication status | Published - 16 Oct 2014 |
Keywords
- desorption
- nonlocal manipulation
- scanning probe microscopy
- surface chemistry
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Dive into the research topics of 'Concerted thermal-plus-electronic nonlocal desorption of chlorobenzene from Si(111)-7 × 7 in the STM'. Together they form a unique fingerprint.Projects
- 1 Finished
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Breaking the Single Atom Limit in Atomic Manipulation
Sloan, P. (PI)
Engineering and Physical Sciences Research Council
1/11/12 → 30/10/14
Project: Research council
Profiles
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Peter Sloan
- Department of Physics - Senior Lecturer
- Centre for Nanoscience and Nanotechnology
- Condensed Matter Physics CDT
- The Bath Physics Observatory (BPO)
- Condensed Matter and Quantum Materials
Person: Research & Teaching, Core staff