Article ID Journal Published Year Pages File Type
5458710 Journal of Alloys and Compounds 2017 6 Pages PDF
Abstract
In this work, the photoconductivity of chromia (Cr2O3) thin films, which were configured an in-plane electrode, was investigated under visible laser illumination. The fast and slow response components of photocurrent were originated by its exciting defect level. Surprisingly, a high photoresponsivity up to 1.94 × 103 A/W was obtained when the Cr2O3/Pt planar capacitor was applied an incident wavelength of 650 nm at room temperature. Moreover, dielectric characterization implied that the current of channel in Cr2O3 film increased with the increasing of its defects concentrations under laser illumination. Our results indicate that the Cr2O3 thin films have a potential application in the photoelectric field.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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