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Updated: May 22, 2026

Characterizing Electron Transport through Living Biofilms
Published on: June 1, 2018
Electron transport at surfaces and interfaces
Christian A Bobisch1, Rolf Möller
1University of Duisburg-Essen, Faculty of Physics and CeNIDE - Center for Nanointegration Duisburg-Essen, Lotharstr. 1, D-47048 Duisburg, Germany. christian.bobisch@uni-due.de
Abstract:
Here we present two techniques which give insight on transport phenomena with atomic resolution. Ballistic electron emission microscopy is used to study the ballistic transport through layered heterogeneous systems. The measured ballistic fraction of the tunneling current provides information about lossless transport channels through metallic layers and organic adsorbates. The transport characteristics of Bi(111)/Si Schottky devices and the influence of the organic adsorbates perylene tetracaboxylic dianhydride acid and C(60) on the ballistic current are discussed. Scanning tunneling potentiometry gives access to the lateral transport along a surface, thus scattering processes within two-dimensional electron systems for the Bi(111) surface and the Si(111)(√3 × √3)-Ag surface could be visualized.
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