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Type of Document Master's Thesis Author Jin, Zengxiao Author's Email Address zjin@nd.edu URN etd-06292006-143025 Title Fabrication and Measurement of Molecular Quantum Cellular Automata (QCA) Device Degree Master of Science in Electrical Engineering Department Electrical Engineering Advisory Committee
Advisor Name Title Alexie Orlov Committee Member Craig Lent Committee Member Gregory Snider Committee Member Keywords
- Molecule
- fabrication
- QCA
- SET
Date of Defense 2006-06-23 Availability restricted Abstract In this thesis molecular Quantum Cellular Automata (QCA) is to be fabricated into areal device. The principle of this experiment is to detect the switching activity of
molecules using a single electron transistor (SET). This is done by growing molecules on
a highly doped p+ Si substrate called a P+ window. The P+ window is also a part of the
island of the SET such that the molecules are capacitively coupled to the SET. The stateswitching
in the molecules will cause an electrical potential change on the island which
will affect the current flow, IDS, of the SET. The fabrication of the device mainly involves
the following steps: The formation of the P+ window, the deposition of metal pads and
wires, the growth of the SET, and the growth of molecules. Until now, real devices have
been made but the switching activity of the molecules has yet to be detected.
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