How Flexoelectricity Drives Triboelectricity

Bibliographic Details
Title: How Flexoelectricity Drives Triboelectricity
Authors: Mizzi, Christopher A., Marks, Laurence D.
Publication Year: 2020
Collection: Condensed Matter
Subject Terms: Condensed Matter - Materials Science
More Details: Triboelectricity has been known since antiquity, but the fundamental physics underlying this phenomenon lacks consensus. We present a flexoelectric model for triboelectricity where contact deformation induced band bending is the driving force for charge transfer. This framework is combined with first principles and finite element calculations to explore charge transfer implications for different contact geometry and materials combinations. We demonstrate that our ab initio based formulation is compatible with existing empirical models and experimental observations including charge transfer between similar materials and size/pressure dependencies associated with triboelectricity.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2010.12963
Accession Number: edsarx.2010.12963
Database: arXiv
More Details
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