Photovoltaic Characteristic of La_0.7Sr_0.3MnO₃/ZnO p-n Heterojunction

We report on the photovoltaic properties of La_0.7Sr_0.3MnO₃/ZnO heterojunction fabricated by pulsed laser deposition methods. Nanosecond
photovoltaic pulses are observed in this junction in the wavelength range from ultraviolet--visible to infrared. A qualitative explanation is presented, based on an analysis of the photovoltaic signals of p-n heterojunction.