Univ PSL Paris Sci & Lettres, Dept Phys, Ecole Normale Super Paris ENS, F-75005 Paris - France
Total Affiliations: 4
Journal of Physical Chemistry C;
JUL 15 2021.
Web of Science Citations:
We investigate the energy relaxation segmentation in a resonant tunneling heterostructure by assessing the optical and transport dynamics of nonequilibrium charge carriers. The electrical and optical properties are analyzed using electronic transport measurements combined with electro- and photo-luminescence spectroscopies in continuous-wave mode. Our results suggest that hot electron and hole populations form independent nonequilibrium systems that do not thermalize among them and with the lattice. Consequently, the carrier effective temperature changes independently at different regions of the heterostructure, with a population distribution for holes colder than for electrons. (AU)