TY - GEN
T1 - Determination of photo-induced Seebeck coefficient for hot carrier solar cell applications
AU - Esmaielpour, Hamidreza
AU - Suchet, Daniel
AU - Lombez, Laurent
AU - Delamarre, Amaury
AU - Boyer-Richard, Soline
AU - Beck, Alexandre
AU - Le Corre, Alain
AU - Durand, Olivier
AU - Guillemoles, Jean Francois
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/6/14
Y1 - 2020/6/14
N2 - Determination of Seebeck coefficient is a practical technique to investigate the direct conversion of hot carrier energy to electric voltage. However, this study is challenging, especially in nanostructured materials using traditional measurements via heaters and electric contacts. Here, we investigate photo-induced Seebeck effects of InGaAs multi-quantum-well structure via a contact-less measurement (photoluminescence spectroscopy). We have determined thermodynamic properties of hot carriers via fitting the emitted photoluminescence spectra with the generalized Planck's law. We have observed a linear dependence between the gradient of carrier temperature and the quasi-Fermi level splitting of photo-generated hot carriers at various lattice temperatures, which is associated with thermoelectric effects in the system.
AB - Determination of Seebeck coefficient is a practical technique to investigate the direct conversion of hot carrier energy to electric voltage. However, this study is challenging, especially in nanostructured materials using traditional measurements via heaters and electric contacts. Here, we investigate photo-induced Seebeck effects of InGaAs multi-quantum-well structure via a contact-less measurement (photoluminescence spectroscopy). We have determined thermodynamic properties of hot carriers via fitting the emitted photoluminescence spectra with the generalized Planck's law. We have observed a linear dependence between the gradient of carrier temperature and the quasi-Fermi level splitting of photo-generated hot carriers at various lattice temperatures, which is associated with thermoelectric effects in the system.
KW - Hot carrier extraction
KW - In-plane photo-Seebeck coefficient
KW - Photoluminescence spectroscopy
KW - Thermoelectric effect
U2 - 10.1109/PVSC45281.2020.9300544
DO - 10.1109/PVSC45281.2020.9300544
M3 - Conference contribution
AN - SCOPUS:85099533183
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 747
EP - 751
BT - 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Y2 - 15 June 2020 through 21 August 2020
ER -