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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Quantum Interference Enhanced Thermoelectricity in Ferrocene Based Molecular Junctions.

Ashkan Vakilipour Takaloo1, Hatef Sadeghi2

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Room-temperature quantum interference in single molecules can engineer thermoelectric properties. Ferrocene cycles with double paths show significantly enhanced thermoelectric power factors compared to single paths.

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Area of Science:

  • Molecular electronics
  • Organic thermoelectric materials

Background:

  • Quantum interference in single molecules offers potential for novel thermoelectric devices.
  • Organic single-molecule junctions are being explored for thermoelectric applications.

Purpose of the Study:

  • To investigate the enhancement of thermoelectric properties in double-path ferrocene cycles compared to single-path structures.
  • To explore the role of quantum interference in modulating thermoelectric performance at the molecular level.

Main Methods:

  • Computational modeling of electronic transport in ferrocene-based molecular junctions.
  • Analysis of quantum interference effects on Seebeck coefficient and conductance.

Main Results:

  • Double-path ferrocene cycles exhibit significantly enhanced thermoelectric power factors (1-2 orders of magnitude higher than current organic materials).
  • Quantum interference in double-path structures enhances the Seebeck coefficient with minimal impact on conductance.
  • Single-path ferrocene cycles show lower thermoelectric performance.

Conclusions:

  • Double-path ferrocene cycles represent a promising platform for high-performance molecular thermoelectricity.
  • Quantum interference is a key mechanism for boosting thermoelectric efficiency in organometallic single-molecule junctions.
  • This work opens new avenues for designing advanced molecular-scale thermoelectric devices.