Giant thermoelectric effect from transmission supernodes

Justin P. Bergfield; Michelle A. Solis; Charles A. Stafford

doi:10.1021/nn100490g

Giant thermoelectric effect from transmission supernodes

Justin P. Bergfield, Michelle A. Solis, Charles A. Stafford

Physics

Research output: Contribution to journal › Article › peer-review

145 Scopus citations

Abstract

We predict an enormous order-dependent quantum enhancement of thermoelectric effects in the vicinity of higher-order interferences in the transmission spectrum of a nanoscale junction. Single-molecule junctions based on 3,3′-biphenyl and polyphenyl ether (PPE) are investigated in detail. The nonequilibrium thermodynamic efficiency and power output of a thermoelectric heat engine based on a 1,3-benzene junction are calculated using many-body theory and compared to the predictions of the figure-of-merit ZT.

Original language	English (US)
Pages (from-to)	5314-5320
Number of pages	7
Journal	ACS Nano
Volume	4
Issue number	9
DOIs	https://doi.org/10.1021/nn100490g
State	Published - Sep 28 2010

Keywords

ZT
electron transport
many-body theory
molecular electronics
nanoscale device
nonequilibrium transport
thermoelectric device
thermoelectrics

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

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10.1021/nn100490g

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abstract = "We predict an enormous order-dependent quantum enhancement of thermoelectric effects in the vicinity of higher-order interferences in the transmission spectrum of a nanoscale junction. Single-molecule junctions based on 3,3′-biphenyl and polyphenyl ether (PPE) are investigated in detail. The nonequilibrium thermodynamic efficiency and power output of a thermoelectric heat engine based on a 1,3-benzene junction are calculated using many-body theory and compared to the predictions of the figure-of-merit ZT.",

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AU - Solis, Michelle A.

AU - Stafford, Charles A.

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AB - We predict an enormous order-dependent quantum enhancement of thermoelectric effects in the vicinity of higher-order interferences in the transmission spectrum of a nanoscale junction. Single-molecule junctions based on 3,3′-biphenyl and polyphenyl ether (PPE) are investigated in detail. The nonequilibrium thermodynamic efficiency and power output of a thermoelectric heat engine based on a 1,3-benzene junction are calculated using many-body theory and compared to the predictions of the figure-of-merit ZT.

KW - ZT

KW - electron transport

KW - many-body theory

KW - molecular electronics

KW - nanoscale device

KW - nonequilibrium transport

KW - thermoelectric device

KW - thermoelectrics

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Giant thermoelectric effect from transmission supernodes

Abstract

Keywords

ASJC Scopus subject areas

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