The study of ultraviolet photosensors with IZO nanosheets

Abstract

We developed a simple method to fabricate indium (In)-doped ZnO nanosheets UV photodetector on the glass substrate. The average length and diameter were 3.06 μm and approximately 38 nm, respectively. The In-doped ZnO nanostructure concentration was 0.34 at.% by SEM-EDX analysis. The UV-to-visible rejection ratio of the sample is ~312 when biased at 1 V, and the fabricated UV PD is visible blind with a sharp cutoff at 360 nm. The photocurrent and dark-current constant ratio of the fabricated PD was ~740 when biased at 1 V.