Author:
Safari Reza,Sabzyan Hassan
Abstract
Abstract
Electronic and vibrational intra-molecular thermoelectric-like figures of merit
(
ZT
γ
M
)
are introduced for single molecule nanoelectronic system, using quantum theory of atoms in molecule. These figures of merit are used to describe intra-molecular or local energy dissipation/transition (as in Joule-like, Peltier-like, and Thomson-like effects) in field effect molecular devices. The
ZT
γ
M
figures of merit are computed for two proposed molecular devices. Analysis of the results shows that
ZT
γ
M
depends almost non-linearly on the electric field (EF) strength. Also, the intra-molecular Joule-like heating plays a dominant role in the local energy dissipation, and intra-molecular Thomson-like heating is generally larger than the intra-molecular Peltier-like heating. Introduction of
ZT
γ
M
can be applied to extend the analysis of thermoelectric heating down to molecular and intra-molecular levels, and thus can be used to predict characteristics and performance of any candidate multi-terminal or multi-pole molecular systems prior to their application in real nanoelectronic circuits.
Subject
Physics and Astronomy (miscellaneous)
Cited by
5 articles.
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