73 citations · 313 across the 8 of their papers we have counts for
5 papers · 1 filter
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…
Effect of quantum confinement on exciton-phonon interactions
Hui Zhao, Sven Wachter, Heinz Kalt
We investigate the homogeneous linewidth of localized type-I excitons in type-II GaAs/AlAs superlattices. These localizing centers represent the intermediate case between quasi-two…
Temperature dependence of polarization relaxation in semiconductor quantum dots
E. Tsitsishvili, R. v. Baltz, H. Kalt
The decay time of the linear polarization degree of the luminescence in strongly confined semiconductor quantum dots with asymmetrical shape is calculated in the frame of second-or…
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…