Work

Thermoelectric Properties of Double Quantum Dots Embedded in a Nanowire

Year: 2011

Type: article

Abstract: We theoretically investigate the thermoelectric properties of a serial double quantum dot junction system. A two-level Anderson model including electron hoppings and intradot Coulomb interactions as well as interdot Coulomb interactions is employed to simulate the system. The charge and heat currents in the Coulomb blockade regime are calculated by Keldysh Green's function technique. The electrical conductance, Seebeck coefficient, electronic thermal conductance, and figure of merit (ZT) of the system are calculated in the linear response regime. We find that the figure of merit ZT is markedly reduced by the size fluctuation and Coulomb interactions.

Source: Japanese Journal of Applied Physics

DOI: 10.7567/jjap.50.025003

Author: David M.-T. Kuo

Institution: National Central University

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Council, Center for Nanoscale Science and Technology

Award: G3006427632