On the role of flexoelectricity in triboelectricity for randomly rough surfaces

Abstract

I show how flexoelectricity result in a fluctuating surface electric potential when elastic solids with random roughness are squeezed into contact. The flexoelectric potential may induce surface charge distributions and hence contribute to triboelectricity. Using the developed theory I analyze the Kelvin Force Microscopy data of Baytekin et al for the electric potential above a polydimethylsiloxane (PDMS) surface after it was peeled away from another PDMS surface

6 pages and 4 figures

References in corpus (1)

• Contact mechanics for randomly rough surfaces

Cited by in corpus (2)

• Persson's Theory of Purely Normal Elastic Rough Surface Contact: A Tutorial Based on Stochastic Process Theory
• Stochastic process model for interfacial gap of purely normal elastic rough surface contact