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Type of Document Master's Thesis Author Isaksen, Beth Claire URN etd-07012003-121454 Title Molecular Quantum-Dot Cellular Automata Degree Master of Science in Electrical Engineering Department Electrical Engineering Advisory Committee
Advisor Name Title Craig S. Lent Committee Member Gary H. Bernstein Committee Member Gregory L. Snider Committee Member Keywords
- molecular electronics
- nanotechnology
- quantum dot
Date of Defense 2003-06-23 Availability unrestricted Abstract Quantum-dot cellular automata (QCA) is an approach to computing which eliminates the need for transistors by representing binary digits as charge configurations rather than current levels. Coulomb interactions provide device-device coupling without current flow. Molecular QCA uses redox sites of molecules as quantum dots. Clocked control of the device allows power gain, control of power dissipation, and pipelined computation. We present ab initio analyses of both clocked and unclocked molecular QCA cells. We compare the results of calculations using several different levels of theory. We examine the role of the relaxation of the nuclear coordinates. We show how simple molecular QCA devices can be implemented.Files
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