Vibrationally promoted electron emission at a metal surface: electron kinetic energy distributions

We report the first direct measurement of the kinetic energy of exoelectrons produced by collisions of vibrationally excited molecules with a low work function metal surface exhibiting electron excitations of 64% (most probable) and 95% (maximum) of the initial vibrational energy. This remarkable ef...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2011-01, Vol.13 (1), p.97-99
Main Authors: LaRue, Jerry, Schäfer, Tim, Matsiev, Daniel, Velarde, Luis, Nahler, N. Hendrik, Auerbach, Daniel J, Wodtke, Alec M
Format: Article
Language:English
Subjects:
Chemistry
Coupling (molecular)
Electrons
Energy Transfer
Exact sciences and technology
Excitation
General and physical chemistry
Kinetic energy
Kinetic energy distribution
Kinetics
Metal surfaces
Metals - chemistry
Nitric Oxide - chemistry
Physical chemistry
Quantum Theory
Surface Properties
Vibration
Work functions
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Summary:We report the first direct measurement of the kinetic energy of exoelectrons produced by collisions of vibrationally excited molecules with a low work function metal surface exhibiting electron excitations of 64% (most probable) and 95% (maximum) of the initial vibrational energy. This remarkable efficiency for vibrational-to-electronic energy transfer is in good agreement with previous results suggesting the coupling of multiple vibrational quanta to a single electron. The first direct measurement of the kinetic energy of exoelectrons produced by collisions of vibrationally excited molecules with a low work function metal surface is reported.
ISSN:1463-9076
1463-9084
DOI:10.1039/c0cp01626h