TY - GEN
T1 - Absorption coefficient and non-equilibrium generalized Planck's law for improved hot carrier photoluminescence spectroscopy
AU - Gibelli, Francois
AU - Lombez, Laurent
AU - Guillemoles, Jean Francois
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The generalized Planck's law describes the light emitted by a blackbody. In the past this law has been generalized to semiconductors. Whereas Planck's orginial formulation roots on a same temperature between the body and the emitted photon gas, the generalized expression for semiconductors has been used to describe electron-hole plasmas in non-equilibrium with the lattice. Here we show experimentally how to determine different electron and hole temperatures in non-equilibrium with the photon gas. Since the absorption coefficient varies with the carrier density and is part of the generalize Planck's law, we particularly emphasize the importance of the absorption coefficient in the analysis of hot carrier photoluminescence spectra.
AB - The generalized Planck's law describes the light emitted by a blackbody. In the past this law has been generalized to semiconductors. Whereas Planck's orginial formulation roots on a same temperature between the body and the emitted photon gas, the generalized expression for semiconductors has been used to describe electron-hole plasmas in non-equilibrium with the lattice. Here we show experimentally how to determine different electron and hole temperatures in non-equilibrium with the photon gas. Since the absorption coefficient varies with the carrier density and is part of the generalize Planck's law, we particularly emphasize the importance of the absorption coefficient in the analysis of hot carrier photoluminescence spectra.
KW - Hot carrier photoluminescence
KW - Hot carrier solar cells
KW - Non-equilibrium electron and hole distributions
KW - Non-equilibrium generalized Planck's law
U2 - 10.1109/PVSC.2017.8366846
DO - 10.1109/PVSC.2017.8366846
M3 - Conference contribution
AN - SCOPUS:85048503422
T3 - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
SP - 1
EP - 3
BT - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 44th IEEE Photovoltaic Specialist Conference, PVSC 2017
Y2 - 25 June 2017 through 30 June 2017
ER -
