1. Energy Transfer Between Carbon Monoxide and Gold Surfaces
Peter Johnsen

2. Motivation
Gain a fundamental understanding of the basic principles involved energy transfer mechanisms at surfaces
Ability to design efficient heterogeneous catalysts
Improvement of surface vapor deposition processes
Creation of more effective ways to combat corrosion

3. The Machine

5. Scattering and Detection

6. Scattering and Detection

8. Scattering and Detection

10. Kr on Au(111)

11. Noble Gas Adsorbates on Au(111)

12. Effects of monolayer adsorption on Au(111)
Electronic Radius
Work Function Change (ΔΦ)*
Relative Electron Ejection Probability
Argon
1.88 Å
- 0.38
4.6± 0.38
Krypton
2.02 Å
- 0.42
3.9±0.40
Xenon
2.16 Å
- 0.53
3.4±0.39
Work function studies of rare-gas/noble metal adsorption systems using a Kelvin probe M. Springborg PRL B 73 (2006)
*M. Springborg PRL B 73 (2006)

15. Conclusion
We are able to cover precisely cover the surface with adsorbates, giving us up to 750% enhancement of the energy transfer process.
The current models for molecular energy transfer fail to accurately describe what’s happening (or break entirely), so we need to develop new models.