2 papers
cond-mat.mtrl-sci2007
Dynamics of trion formation in GaAs quantum wells
M. T. Portella-Oberli, J. Berney, L. Kappei +3
We propose a double channel mechanism for the formation of charged excitons (trions); they are formed through bi- and tri-molecular processes. This directly implies that both negat…
cond-mat2003
Direct measure of the exciton formation in quantum wells from time resolved interband luminescence
J. Szczytko, L. Kappei, J. Berney +3
We present the results of a detailed time resolved luminescence study carried out on a very high quality InGaAs quantum well sample where the contributions at the energy of the exc…