Qiwei Hu

Qiwei Hu

Doctoral Researcher

Research Area A

Institute of Physical Chemistry
University of Freiburg

Phone: +49 761 203 6173
Fax: +49 761 203-6189

Project: Characterizing triboelectric interfaces with Atomic Force Microscopy (AFM) based methods

Supervisor: Prof. Dr. Thorsten Hugel

The triboelectric effect describes the following phenomenon: when two dissimilar contacting materials move in opposite directions, the difference in their electron-affinities causes charges to separate. However, for insulators, it is unclear whether electrons, ions or material fragments transfer during contact. In my research, I utilize Atomic Force Microscopy (AFM) with Kelvin Probe method to analyze the topography and surface potential of triboelectric interfaces before and after contacting. This approach will provide a better understanding of the relation between surface properties and triboelectric behavior.