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Title

DETAILED MAPPING OF INTRAMOLECULAR ENERGY TRANSFER IN FIELD-EFFECT SINGLE-MOLECULE NANOELECTRONIC DEVICES

Pages

 Start Page 1513 | End Page 1532

Abstract

 The electronic and vibrational atomic responses to external electric field (EF) are computed to detail INTRAMOLECULAR ENERGY TRANSFER in a proposed molecular nanoelectronic field-effect system. The parallel and perpendicular electronic and vibrational contributions to INTRAMOLECULAR ENERGY TRANSFER are computed using, respectively, quantum theory of atoms-in-molecule and an energy partitioning scheme based on normal modes vibrational analysis. The symmetrical and asymmetrical INTRAMOLECULAR ENERGY TRANSFERs are interpreted, respectively, as Peltier-like and Joule-like effects and quantified in terms of appropriate coefficients. Dependencies of these coefficients on EF are investigated. In addition, a semiclassical temperature model is introduced to describe symmetrical and asymmetrical temperature distributions which are attributed, respectively, to the Joule-like and Peltier-like heatings. This procedure can be used to map out intramolecular energy distribution in molecular nanoelectronic systems.

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