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Journal Article

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

MPS-Authors
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Koch,  Matthias
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Nacci,  Christophe
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Universität Graz;

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Kumagai,  Takashi
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Grill,  Leonhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Universität Graz;

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PhysRevLett.121.047701.pdf
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Citation

Koch, M., Li, Z., Nacci, C., Kumagai, T., Franco, I., & Grill, L. (2018). How Structural Defects Affect the Mechanical and Electrical Properties of Single Molecular Wires. Physical Review Letters, 121(4): 047701. doi:10.1103/PhysRevLett.121.047701.


Cite as: https://hdl.handle.net/21.11116/0000-0001-EDD0-9
Abstract
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.