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An ab initio approach to the calculation of current-voltage characteristics of programmable molecular devices

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3 Author(s)
J. M. Seminario ; Dept. of Electr. Eng., Univ. of South Carolina, Columbia, SC, USA ; L. E. Cordova ; P. A. Derosa

Molecular electronics can be developed if we are able to program a random arrangement of molecules or a field-programmable molecular random array. The ansatz that small molecules can be programmed needs to be demonstrated; this means characterizing the smallest molecular system with programmable features. We demonstrate that even two molecules in a series conformation can have multivalued responses and, thus, is able to be programmed; we also indicate how to extend this programmability to other molecular circuit conformations. Current programs for the calculation of current-voltage characteristics of electronic circuits, needed for such demonstrations, are only capable of predicting single-valued characteristics. We present results from our ab initio procedures that couple the molecular approaches with a practical analysis of molecular circuits having strong nonlinearities.

Published in:

Proceedings of the IEEE  (Volume:91 ,  Issue: 11 )