Negative differential electrical resistance of a rotational organic nanomotor

Sadeghi, Hatef and Sangtarash, Sara and Al-galiby, Qusiy and Sparks, Rachel and Bailey, Steven and Lambert, Colin J. (2015) Negative differential electrical resistance of a rotational organic nanomotor. Beilstein Journal of Nanotechnology, 6. pp. 2332-2337. ISSN 2190-4286

[thumbnail of 2190_4286_6_240]
PDF (2190_4286_6_240)
2190_4286_6_240.pdf - Published Version
Available under License Creative Commons Attribution.

Download (3MB)


A robust, nanoelectromechanical switch is proposed based upon an asymmetric pendant moiety anchored to an organic backbone between two C60 fullerenes, which in turn are connected to gold electrodes. Ab initio density functional calculations are used to demonstrate that an electric field induces rotation of the pendant group, leading to a nonlinear current–voltage relation. The nonlinearity is strong enough to lead to negative differential resistance at modest source–drain voltages.

Item Type:
Journal Article
Journal or Publication Title:
Beilstein Journal of Nanotechnology
Additional Information:
© 2015 Sadeghi et al; licensee Beilstein-Institut. This is an Open Access article under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (
Uncontrolled Keywords:
?? materials science(all)electrical and electronic engineeringphysics and astronomy(all) ??
ID Code:
Deposited By:
Deposited On:
14 Dec 2015 11:12
Last Modified:
31 Dec 2023 00:37