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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:04 |
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Conference: Bucharest University Faculty of Physics 2003 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
BUILDING A ROOM-TEMPERATURE SINGLE-ELECTRON-TRANSISTOR BY NANOMANIPULATION WITH AFM AND APPLICATION IN CHEMICAL SENSING.
Authors:
P. Budau1, A. Requicha2, P. M. Echternach3, Z. Chongwu2,4
Affiliation:
1. Laboratory for Molecular Robotics, USC - Los Angeles, U.S.A
2. University of Southern California, Los Angeles, U.S.A.
3. JPL Pasadena, U.S.A.
4. Stanford University, U.S.A.
E-mail
Keywords:
Abstract:
We built and characterized a Single Electron Transistor (SET), by a combination of electron beam lithography and nanomanipulation with an Atomic Force Microrcopy. Electron beam lithography was used to lay down electrodes and wires to form the source, drain and gate of an SET. Nanomanipulations with AFM were used to build the islands and tunnel junctions by precisely positioning nanoparticles between the electrods. Very sensitive conductivity measurements indicate the presence of Coulomb blocade effects even at room temperature. The ultimate goal of this research is to use changes in the SETs characteristics for detecting chemical species attached to the particle islands.
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