Effects of interdot hopping and coulomb blockade on the thermoelectric properties of serially coupled quantum dots

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Title:	Effects of interdot hopping and coulomb blockade on the thermoelectric properties of serially coupled quantum dots
Authors:	郭明庭;T Kuo, David M;Chang, Yia-Chung
Contributors:	資訊電機學院電機工程學系
Keywords:	Chemistry and Materials Science;Conductance;Electrical resistivity;Equations of motion;Figure of merit;Green's functions;Heat transfer;Jumping;Materials Science;Molecular Medicine;Nano Review;Nanochemistry;Nanoscale Science and Technology;Nanotechnology;Nanotechnology and Microengineering;Quantum dots;Seebeck effect;Thermal conductivity;Thermoelectricity
Date:	2012-01-01
Issue Date:	2026-04-23 13:57:17 (UTC+8)
Publisher:	Springer New York;New York: Springer Science and Business Media LLC
Abstract:	摘要： We have theoretically studied the thermoelectric properties of serially coupled quantum dots (SCQDs) embedded in an insulator connected to metallic electrodes. In the framework of Keldysh Green’s function technique, the Landauer formula of transmission factor is obtained using the equation of motion method. Based on such analytical expressions of charge and heat currents, we calculate the electrical conductance, Seebeck coefficient, electron thermal conductance, and figure of merit (ZT) of SCQDs in the linear response regime. The effects of interdot hopping and electron Coulomb interactions on ZT are analyzed. We demonstrate that ZT is not a monotonic increasing function of interdot electron hopping strength ( t c ). We also show that in the absence of phonon thermal conductance, SCQD can reach the Carnot efficiency as t c approaches zero. 其他題名： Nanoscale Res Lett 出版者： New York: Springer Science and Business Media LLC 出版日期： 2012-05-16 出處： Nanoscale Research Letters, 2012-05, Vol.7 (1), p.257--257, Article 257 資源來源： Publicly available content database 版權： Kuo and Chang; licensee Springer. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 版權： Copyright Springer Nature B.V. Dec 2012 版權： Copyright ©2012 Kuo and Chang; licensee Springer. 2012 Kuo and Chang; licensee Springer. 識別號： ISSN: 1556-276X 識別號： ISSN: 1931-7573 識別號： EISSN: 1556-276X 識別號： DOI: 10.1186/1556-276x-7-257 識別號： PMID: 22591807
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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