Molecular Quantum-Dot Cellular Automata

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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.


Attribute NameValues
  • etd-07012003-121454

Author Beth Claire Isaksen
Advisor Gregory L. Snider
Contributor Gregory L. Snider, Committee Member
Contributor Craig S. Lent, Committee Member
Contributor Gary H. Bernstein, Committee Member
Degree Level 1
Degree Discipline Electrical Engineering
Degree Name Master of Science in Electrical Engineering
Defense Date
  • 2003-06-23

Submission Date 2003-07-01
  • United States of America

  • molecular electronics

  • nanotechnology

  • quantum dot

  • University of Notre Dame

  • English

Access Rights Open Access
Content License
  • All rights reserved