Article ID Journal Published Year Pages File Type
8014780 Materials Letters 2018 12 Pages PDF
Abstract
CuO/ZnO:Al photo-diode has been fabricated by spray pyrolysis technique. The prepared sample characterized by FESEM images, XRD and UV-Visible spectra, also I-V measurements in dark and under illumination. We found that, the investigated layers have a polycrystalline structure with optical band gaps of 3.25 eV and 1.63 eV for ZnO and CuO layers, respectively. Electrical characterization of the sample showed a rectifying behavior in dark, with an ideality factor of 5.8 ± 0.1, and under illumination in reverse bias at 1.5 V, the photo-generated current was more than twice of its dark current.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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