Optical mapping of non-equilibrium charge carriers
arXiv:2303.03506 · doi:10.1021/acs.jpcc.1c02173
Abstract
We investigate the energy relaxation segmentation in a resonant tunneling heterostructures by assessing the optical and transport dynamics of non-equilibrium charge carriers. The electrical and optical properties are analyzed using electronic transport measurements combined with electro- and photoluminescence spectroscopies in continuous-wave mode. The radiative recombination is mainly governed by the creation of heavy holes \textit{via} impact ionization processes. Our results suggest hot electrons and holes populations form independent non-equilibrium systems that do not thermalize among them and with the lattice. Consequently, the carriers effective temperature changes independently at different regions of the heterostructure, with a population distribution for holes colder than for electrons.
arXiv commentThis version of the manuscript was submitted to the Journal of the Physical Chemistry C. The revised published version can be found at https://pubs.acs.org/doi/10.1021/acs.jpcc.1c02173
References in corpus (3)
- Fighting Broken Symmetry with Doping: Toward Polar Resonant Tunneling Diodes with Symmetric Characteristics
- Electroluminescence on-off ratio control of n-i-n GaAs/AlGaAs-based resonant tunneling structures
- Determination of carrier density and dynamics via magneto-electroluminescence spectroscopy in resonant tunneling diodes