Optical determination of thermoelectric transport coefficients in a hot-carrier absorber
Hot-carrier solar cells offer potential for enhancing the energy-conversion efficiency of photovoltaic devices. Transport properties of such systems remain largely unexplored but could hinder their efficiency. In this work, we develop a suitable framework for describing the thermoelectric ambipolar transport of photogenerated hot carriers and derive analytical expressions for the ambipolar transport coefficients that are valid even in the degenerate case. We demonstrate that these transport coefficients can be measured from hyperspectral photoluminescence imaging. We validate this experimental determination by showing its consistency with the Boltzmann transport equation in the relaxation-time approximation.
Authors
- Daniel Suchet (ORCID: https://orcid.org/0000-0002-4034-1016)
- Hamidreza Esmaielpour (ORCID: https://orcid.org/0000-0002-9432-8861)
- Jean‐François Guillemoles (ORCID: https://orcid.org/0000-0003-0114-8624)
- Laurent Lombez (ORCID: https://orcid.org/0000-0001-7895-913X)
- Thomas Vezin (ORCID: https://orcid.org/0000-0001-5611-155X)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Institut national de l’information géographique et forestière (FR)
- École Polytechnique (FR)
- Université Fédérale de Toulouse Midi-Pyrénées (FR)
- Institut de Recherche de Chimie Paris (FR)
- Institut de Chimie (FR)
- Laboratoire de Physique et Chimie des Nano-Objets (FR)
- École Nationale Supérieure de Chimie, de Biologie et de Physique (FR)
- Technical University of Munich (DE)
Publication Details
- Journal
- Physical Review Applied
- Published
- 2024-09-09
- DOI
- https://doi.org/10.1103/physrevapplied.22.034018
- Citations
- 2
- Primary Topic
- Advanced Thermoelectric Materials and Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.23
Funders
- Agence Nationale de la Recherche