Photoelectric conversion enhancement of Ag modified p-type Cu2O/n-type ZnO transparent heterojunction device

The Ag modified transparent Cu2O/ZnO p–n junction films were prepared by a simple magnetron sputtering process. The transparence and photoelectric conversion of these devices were investigated, which exhibited an obvious photoelectric conversion enhancement (PCE of 0.48%, ten times) than those of the unmodified heterojunction. Through analysis, the enhancement of the photoelectric conversion could be attributed to the remarkable Cu2O/ZnO p–n junction and Ag0 nanoparticles with the performances of photoelectron donor and surface enhanced plasmonic absorption.