Frictional Characteristics of Atomically Thin Sheets

• Published in: Science (American Association for the Advancement of Science) Vol. 328; no. 5974; pp. 76 - 80
• Main Authors: Lee, Changgu, Li, Qunyang, Kalb, William, Liu, Xin-Zhou, Berger, Helmuth, Carpick, Robert W, Hone, James
• Format: Journal Article
• Language: English
• Published: Washington, DC American Association for the Advancement of Science 02.04.2010; The American Association for the Advancement of Science
• Subjects: Adhesion; Atoms & subatomic particles; Bending; Boron; boron nitride; Condensed matter: structure, mechanical and thermal properties; Crystal lattices; elastic deformation; Exact sciences and technology; finite element analysis; Friction; Graphene; Graphite; Material properties; Materials; Materials science; Mechanical and acoustical properties; Mica; microscopy; Molybdenum; molybdenum disulfide; Nanoscience; Niobium; Physical properties of thin films, nonelectronic; Physics; silica; Sliding; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Atomic force microscopy; Molybdenum sulfide; Slip; Boron nitride; Nanostructures; Elastic deformation; Thin films; Thickness; Finite element method; Nanometer scale; Friction; Stick slip; Graphene; Atomistic model; Silicon oxides; Niobium selenides; Modelling

Using friction force microscopy, we compared the nanoscale frictional characteristics of atomically thin sheets of graphene, molybdenum disulfide (MoS₂), niobium diselenide, and hexagonal boron nitride exfoliated onto a weakly adherent substrate (silicon oxide) to those of their bulk counterparts. M...