Negative differential electrical resistance of a rotational organic nanomotor
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چکیده
منابع مشابه
Negative differential electrical resistance of a rotational organic nanomotor
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 s...
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The conductance-voltage spectrum of molecular nanostructures measured by scanning tunneling spectroscopy (STS) is generally assumed to reflect the local density of states of the molecule. This excludes the possibility of observing negative differential resistance (NDR). We report here the observation of NDR in the scanning tunneling microscope (STM) current-voltage (I-V) characteristics of self...
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Thin (12-nm) self-assembled films of the insulating molecule 11-mercaptoundecanoic acid (MUA) were contacted by gold electrodes in a sandwich structure. Current-voltage scans of the resulting devices revealed symmetric negative differential resistance (NDR) with peaks at ±3 V and large peak current densities of up to 10 A/cm. Devices could be programmed reversibly into nonvolatile highand low-c...
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In the interpretation of scanning tunneling spectroscopy (STS) data on molecular nanostructures the tunneling conductance is often assumed to be proportional to the local density of states of the molecule. This precludes the possibility of observing negative diierential resistance (NDR). We report here the observation of NDR in the current-voltage (I-V) characteristics of a self-assembled monol...
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ژورنال
عنوان ژورنال: Beilstein Journal of Nanotechnology
سال: 2015
ISSN: 2190-4286
DOI: 10.3762/bjnano.6.240