Inverse Layer Dependence of Friction on Chemically Doped MoS_{2}
Skip to main content
eScholarship
Open Access Publications from the University of California

Inverse Layer Dependence of Friction on Chemically Doped MoS_{2}

  • Author(s): Acikgoz, Ogulcan
  • Yanilmaz, Alper
  • Dagdeviren, Omur E
  • Çelebi, Cem
  • Baykara, Mehmet Z
  • et al.
Abstract

We present the results of atomic-force-microscopy-based friction measurements on Re-doped molybdenum disulfide (MoS2). In stark contrast to the seemingly universal observation of decreasing friction with increasing number of layers on two-dimensional (2D) materials, friction on Re-doped MoS2 exhibits an anomalous, i.e. inverse dependency on the number of layers. Raman spectroscopy measurements revealed signatures of Re intercalation, leading to a decoupling between neighboring MoS2 layers and enhanced electron-phonon interactions, thus resulting in increasing friction with increasing number of layers: a new paradigm in the mechanics of 2D materials.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
Current View