Mechanically adjustable and electrically gated single-molecule transistors.
We demonstrate a device geometry for single-molecule electronics experiments that combines both the ability to adjust the spacing between the electrodes mechanically and the ability to shift the energy levels in the molecule using a gate electrode. With the independent in-situ variations of molecular properties provided by these two experimental "knobs", we are able to achieve a much more detailed characterization of electron transport through the molecule than is possible with either technique separately. We illustrate the performance of the device using C(60) molecules.
Champagne
Alexandre R
AR
Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA.
Pasupathy
Abhay N
AN
Ralph
Daniel C
DC
D004548:Elasticity; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006046:Gold; D008422:Materials Testing; D019563:Mechanics; D020409:Molecular Motor Proteins / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D014173:Transistors, Electronic
D020409:Molecular Motor Proteins; D006046:Gold; D012822:Silicon Dioxide