Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 250, Issue 11, Pages 2315-2329Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201349219
Keywords
heat transport; molecular quantum dots; thermoelectric effect; time-dependent driving
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Funding
- DFG [SPP-1243]
- Excellence Initiative of the German Federal State Government
- Ministry of Innovation NRW
- Swedish Research Council (VR)
- nmC@LU
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In this article we review aspects of charge and heat transport in interacting quantum dots and molecular junctions under stationary and time-dependent non-equilibrium conditions due to finite electrical and thermal bias. In particular, we discuss how a discrete level spectrum can be beneficial for thermoelectric applications, and investigate the detrimental effects of molecular vibrations on the efficiency of a molecular quantum dot as an energy converter. In addition, we consider the effects of a slow time-dependent modulation of applied voltages on the transport properties of a quantum dot and show how this can be used as a spectroscopic tool complementary to standard dc-measurements. Finally, we combine time-dependent driving with thermoelectrics in a double-quantum dot system -a nanoscale analog of a cyclic heat engine -and discuss its operation and the main limitations to its performance.
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