The recombination of electrons and holes releases oxygen ions near the zno surface, which leads to a reduction in the depletion zone and produces recombination emission
The compound release of electrons and holes releases oxygen ions near the zno surface, which results in a reduction in the depletion zone and the production of composite light
The recombination of electrons and holes releases oxygen ions near the surface of ZnO, which leads to the decrease of depletion region and complex emission