Dimensional crossover of exciton hopping relaxation in mesoscopic structures
J. E. Golub; R. Eichmann; P. Thomas; J. E. Golub; Fachbereich Physik und Wissenschaftliches Zentrum für Materialwissenschaften Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany; R. Eichmann; Fachbereich Physik und Wissenschaftliches Zentrum für Materialwissenschaften Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany; P. Thomas; Fachbereich Physik und Wissenschaftliches Zentrum für Materialwissenschaften Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany
Журнал:
EPL (Europhysics Letters)
Дата:
1999-09-01
Аннотация:
We compute the time-resolved and steady-state recombination spectra for excitons in disordered semiconductor strips on the basis of hopping theory. Exciton hopping undergoes a dimensional crossover when the hop length is comparable to the strip width. We show by Monte Carlo simulation that the analysis of time-resolved photoluminescence spectra for strips of differing widths provides a measurement of the parameters of the hopping theory and permits a determination of the hopping mechanism.
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