PMID: 11607710Oct 1, 1996Paper

Room-temperature single-electron junction

Proceedings of the National Academy of Sciences of the United States of America
P FacciC Nicolini

Abstract

The design, realization, and test performances of an electronic junction based on single-electron phenomena that works in the air at room temperature are hereby reported. The element consists of an electrochemically etched sharp tungsten stylus over whose tip a nanometer-size crystal was synthesized. Langmuir-Blodgett films of cadmium arachidate were transferred onto the stylus and exposed to a H2S atmosphere to yield CdS nanocrystals (30-50 angstrom in diameter) imbedded into an organic matrix. The stylus, biased with respect to a flat electrode, was brought to the tunnel distance from the film and a constant gap value was maintained by a piezo-electric actuator driven by a feedback circuit fed by the tunneling current. With this set-up, it is possible to measure the behavior of the current flowing through the quantum dot when a bias voltage is applied. Voltage-current characteristics measured in the system displayed single-electron trends such as a Coulomb blockade and Coulomb staircase and revealed capacitance values as small as 10(-19) F.

Citations

Oct 11, 2012·Biomacromolecules·Alice DimonteSandro Carrara
Sep 24, 2004·IEEE Transactions on Nanobioscience·Victor ErokhinM P Fontana
Sep 1, 2007·Analytica Chimica Acta·Enrico Stura, Claudio Nicolini
Jan 6, 2018·Reports on Progress in Physics·Christopher D BostickDavid Lederman

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