Physics of semiconductors and dielectrics investigation of the recombination processes in zinc oxide under pulsed excitation

摘要

Results of experimental study of luminescence and microwave photoconductivity in zinc oxide under pulsed photoexcitation are presented. A recombination model is suggested which explains the different kinetic dependences of the luminescence and photoconductivity decay. The results obtained demonstrate that the green luminescence arises in ZnO due to the recombination of an electron from the conduction band with a hole trapped by a luminescence center.