4 papers
Hot exciton transport in ZnSe quantum wells
Hui Zhao, Sebastian Moehl, Sven Wachter +1
The in-plane transport of excitons in ZnSe quantum wells is investigated directly by microphotoluminescence in combination with a solid immersion lens. Due to the strong Froehlich…
Coherence Length of Excitons in a Semiconductor Quantum Well
Hui Zhao, Sebastian Moehl, Heinz Kalt
We report on the first experimental determination of the coherence length of excitons in semiconductors using the combination of spatially resolved photoluminescence with phonon si…
Spatio-temporal dynamics of quantum-well excitons
Hui Zhao, B. Dal Don, S. Moehl +3
We investigate the lateral transport of excitons in ZnSe quantum wells by using time-resolved micro-photoluminescence enhanced by the introduction of a solid immersion lens. The sp…
Energy relaxation during hot-exciton transport in quantum wells: Direct observation by spatially resolved phonon-sideband spectroscopy
Hui Zhao, Sebastian Moehl, Heinz Kalt
We investigate the energy relaxation of excitons during the real-space transport in ZnSe quantum wells by using microphotoluminescence with spatial resolution enhanced by a solid i…