Journal
ACS NANO
Volume 4, Issue 11, Pages 6681-6686Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn1021499
Keywords
molecular motors; molecular electronics; NEMS; molecular dipole conjugation
Categories
Funding
- Stichting FOM [86]
- EU
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Many types of molecular, motors have been proposed and Synthesized in recent years, displaying different kinds of motion and fueled by different driving forces such as light, heat, or chemical reaction. We propose a new type of molecular motor based on electric field actuation and electric current detection of the rotational motion of a molecular dipole embedded in a three-terminal single-molecule device. The key aspect of this all-electronic design is the conjugated backbone of the molecule, which simultaneously provides the potential landscape of the rotor orientation and a real time measure of that orientation through the modulation of the conductivity. Using quantum chemistry calculations, we show that this approach provides full control over the speed and continuity of motion, thereby combining electrical and mechanical control at the molecular level over a wide range of temperatures. Moreover, chemistry can be used to change all key parameters of the device enabling a variety of new experiments on molecular motors
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