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Portrait of Heiner Linke; Photo: Kennet Ruona

Heiner Linke

Professor, Deputy dean at Faculty of Engineering, LTH

Portrait of Heiner Linke; Photo: Kennet Ruona

Increasing thermoelectric performance using coherent transport

Author

  • Olov Karlström
  • Heiner Linke
  • Gunnar Karlström
  • Andreas Wacker

Summary, in English

We show that coherent electron transport through zero-dimensional systems can be used to tailor the shape of the system's transmission function. This quantum-engineering approach can be used to enhance the performance of quantum dots or molecules in thermal-to-electric power conversion. Specifically, we show that electron interference in a two-level system can substantially improve the maximum thermoelectric power and the efficiency at maximum power by suppressing parasitic charge flow near the Fermi energy and by reducing electronic heat conduction. We discuss possible realizations of this approach in molecular junctions or quantum dots.

Department/s

  • Mathematical Physics
  • Solid State Physics
  • Theoretical Chemistry
  • NanoLund

Publishing year

2011

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

84

Issue

11

Document type

Journal article

Publisher

American Physical Society

Topic

  • Condensed Matter Physics

Status

Published

Research group

  • Nanometer structure consortium (nmC)
  • Linne Center for Nanoscience and Quantum Engineering

ISBN/ISSN/Other

  • ISSN: 1098-0121