Abstract
In this letter, Mg-doped ZnO nanorods were fabricated successfully on a glass substrate at 80°C by hydrothermal method. The visible-blind photodetectors show good stability properties in ultraviolet (UV) illumination. The resulting Mg-doped ZnO nanorods have excellent potential for application in a UV photodetector because of Mg-doped ZnO nanorods UV photodetector has a high UV-to-visible ratio, fast rise/fall time. The dynamic response of the Mg-doped ZnO nanorods photodetector with Au electrodes was stable and reproducible with an on/off current contrast ratio of ~ 5.2×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> .
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