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arXiv · 1909.06318

Low-energy electron escape from liquid interfaces: charge and quantum effects

Loren Ban·Thomas E. Gartmann·Bruce L. Yoder·R. Signorell
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Abstract

The high surface sensitivity and controlled surface charge state of submicron sized droplets is exploited to study low-energy electron transport through liquid interfaces using photoelectron imaging. Already a few charges on a droplet are found to modify the photoelectron images significantly. For narrow escape barriers, the comparison with an electron scattering model reveals pronounced quantum effects in the form of above-barrier reflections at electron kinetic energies below about 1 eV. The observed susceptibility to the characteristics of the electron escape barrier might provide access to these properties for liquid interfaces, which are generally difficult to investigate.

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Loren Ban, Thomas E. Gartmann, Bruce L. Yoder, R. Signorell. 2019-09-13. Low-energy electron escape from liquid interfaces: charge and quantum effects. https://doi.org/10.1103/physrevlett.124.013402

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