Title :
Visible-Blind Photodetectors With Mg-Doped ZnO Nanorods
Author :
Liu, Y.H. ; Sheng-Joue Young ; Hsiao, C.H. ; Liang-Wen Ji ; Meen, T.H. ; water, Wayne ; Shoou-Jinn Chang
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
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 ~ 5.2×103.
Keywords :
II-VI semiconductors; magnesium; nanofabrication; nanophotonics; nanorods; optical fabrication; photodetectors; ultraviolet detectors; wide band gap semiconductors; zinc compounds; SiO2; UV photodetector; UV-to-visible ratio; ZnO:Mg; dynamic response; electrodes; glass substrate; hydrothermal method; nanorods; on-off current contrast ratio; stability properties; temperature 80 degC; ultraviolet illumination; visible-blind photodetectors; Films; Glass; Lighting; Photodetectors; Substrates; Zinc oxide; Mg-doped ZnO; hydrothermal method; nanorod; photodetectors; transmission spectra;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2301845
