Abstract
Although molecular electronics is in its infancy, there are many significant advances in understanding and implementing computational functions based on molecular electronic devices. In order to evaluate a molecular electronic circuit, a model is needed. In existing literature, only a few models have been introduced for molecular electronics, all of which do not support the hysteresis phenomenon. To the best of the authors’ knowledge, for the first time, this paper introduces a behavioral model in SPICE which is able to imitate hysteresis behavior in a desired molecular circuit. The proposed model is then modified in order to guarantee continuous behavior in its I/V curves. Some molecular electronic I/V curves from the literature are selected and by utilizing the proposed model, its correct operation are investigated. Key words: Molecular electronics, behavioral model, hysteresis phenomenon, SPICE.
Highlights
During the last decades, the feature size of MOS-based circuits has dramatically decreased
The ever decreasing feature size will face serious challenges and alternative technologies should be selected. Due to their performance and density, molecular electronics is a promising candidate for nanoelectronic applications
Molecular electronics has been proposed as a pathway for high-density nanoelectronic devices (Seminario, 2005)
Summary
The feature size of MOS-based circuits has dramatically decreased. The ever decreasing feature size will face serious challenges and alternative technologies should be selected. Due to their performance and density, molecular electronics is a promising candidate for nanoelectronic applications. Molecular electronics has been proposed as a pathway for high-density nanoelectronic devices (Seminario, 2005). Before manufacturing process of molecular electronic circuits, a model is needed in order to simulate the behavior of the circuit in a reasonable amount of time and with acceptable accuracy. A behavioral model for modeling the hysteresis phenomenon in molecular based circuits is proposed. For achieving the most accuracy a modification in the proposed behavioral model is made
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