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:
© 2016 IEEE.
PY - 2016/11/18
Y1 - 2016/11/18
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
UR - https://www.scopus.com/pages/publications/85003530602
U2 - 10.1109/PVSC.2016.7750336
DO - 10.1109/PVSC.2016.7750336
M3 - Conference contribution
AN - SCOPUS:85003530602
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 3567
EP - 3569
BT - 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
Y2 - 5 June 2016 through 10 June 2016
ER -