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Nanodevices and nanostructures: quantum wires and quantum dots
ECE 423 Final ProjectWan-Ching Hung
Dec 12,2006
Quantum Dots and Quantum Lines A quantum dot typically contains between
1 to 200 atoms in diameter and its length, width, and high are generally defined less than 100nm.
The electron is retrained by Fermi wavelength.
Quantum dot is confined in 3 dimensions and quantum line is confined in 2 dimensions.
Quantum Dots Applications
Nanobarcodes nanobarcodes are made
different quantum wires of different metals that have different
reflectivity.
Molecule capsule in drug delivery system
Quantum Confinement Under 100nm, the
wave property of electron can not be ignored.
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Coulomb Blockade a Coulomb
blockade is the increased resistance at small bias voltage of an electronic device comprising at lease one low-capacitance tunnel junction.
Lithography and Etching
Lithography: electron beam, ion beam, nanoimprint, dip pen nanolithography
Etching: wet etching, dry etching, plasma, implantation, photo etching