How Structural Defects Affect the Mechanical and Electrical Properties of Single Molecular Wires

Matthias Koch, Zhi Li, Christophe Nacci, Takashi Kumagai, Ignacio Franco, and Leonhard Grill:

Phys. Rev. Lett. 121, 047701 (2018), pp.6;

DOI: 10.1103/PhysRevLett.121.047701


We report how individual defects affect single graphene nanoribbons by scanning tunneling and atomic force microscopy pulling experiments simultaneously accessing their electrical and mechanical properties. The on-surface polymerization of the graphene nanoribbons is controlled by cooperative effects as theoretically suggested. Further, we find, with the help of atomistic simulations, that defects substantially vary the molecule-substrate coupling and drastically increase the flexibility of the graphene nanoribbons while keeping their desirable electronic properties intact.

The original publication is available by link DOI: 10.1103/PhysRevLett.121.047701

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