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

Volume

26

Issue

7

fYear

2014

fDate

1-Apr-14

Firstpage

645

Lastpage

648

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2301845

Filename

6722894