Optical studies of vertical ambipolar transport and interface recombination velocities in GaAs/Al0.5Ga0.5As double-quantum-well heterostructuresH. HillmerA. Forchelet al.1991Physical Review BPaper
Optical investigations on the mobility of two-dimensional excitons in GaAs/Ga1-xAlxAs quantum wellsH. HillmerA. Forchelet al.1989Physical Review BPaper
Experimental and theoretical study of scattering mechanisms for 2D excitons in GaAs/AlGaAs quantum wellsH. HillmerA. Forchelet al.1989Solid State ElectronicsPaper
Two-dimensional exciton transport in GaAs/GaAlAs quantum wellsH. HillmerS. Hansmannet al.1988Applied Physics LettersPaper