Multiple timescale contact charging

Troy Shinbrot, Behrooz Ferdowsi, Sankaran Sundaresan, Nuno A.M. Araujo

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Contact charging between insulators is one of the most basic, yet least well understood, of physical processes. For example we have no clear theory for how insulators recruit enough charge carriers to deposit charge but not enough to discharge. In this paper we note that charging and discharging kinetics may be distinct, and from this observation we develop a mathematical model. The model surprisingly predicts that charging can decrease as contact frequency increases: We confirm this prediction experimentally and propose future steps.

Original languageEnglish (US)
Article number125003
JournalPhysical Review Materials
Issue number12
StatePublished - Dec 21 2018

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Multiple timescale contact charging'. Together they form a unique fingerprint.

Cite this