Control of photoelectric conversion in GaAs/AlGaAs heterostructures by means of an acoustic vibration piezoelectric field

Control of charge carrier transport and recombination in low-dimensional heterostructures is a topical problem of applied physics in view of the need to improve the efficiency of available optoelectronic and nanoelectronic devices and create new-generation devices. The possibility of using piezoelectric fields produced by acoustic vibrations to control photoelectric conversion in heterostructures with GaAs quantum wells is studied. The spectral dependences of the capacitor photovoltage in the heterostructures indicate that carrier separation both in the quantum well plane and in the direction normal to this plane can be controlled by varying the piezoelectric field configuration, which is governed by the vibration frequency in the heterostructure.