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Article Dans Une Revue Physica B: Condensed Matter Année : 2016

Two carrier temperatures non-equilibrium generalized Planck law for semiconductors

Résumé

Planck's law of radiation describes the light emitted by a blackbody. This law has been generalized in the past for the case of a non-blackbody material having a quasi Fermi-level splitting: the lattice of the material and the carriers are then considered in an isothermal regime. Hot carrier spectroscopy deals with carriers out of the isothermal regime, as their respective temperatures (≠) T T H e H h are considered to be different than that of the lattice () T L. Here we show that Fermi-Dirac distribution temperature for each type of carrier still determine an effective radiation temperature: an explicit relationship is given involving the effective masses. Moreover, we show how to determine, in principle with an additional approximation, the carrier temperatures () T T , H e H h and the corresponding absolute electrochemical potentials from photoluminescence measurements.
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Dates et versions

hal-01972806 , version 1 (15-01-2019)

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François Gibelli, Laurent Lombez, Jean-Francois Guillemoles. Two carrier temperatures non-equilibrium generalized Planck law for semiconductors. Physica B: Condensed Matter, 2016, 498, pp.7-14. ⟨10.1016/j.physb.2016.06.006⟩. ⟨hal-01972806⟩
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