Fabrication and Characterization of Undoped and Cobalt-doped ZnO Based UV Photodetector Prepared by RF-sputtering

Undoped and 1 at.% Co-doped ZnO nanostructure based UV photodetectors were successfully fabricated by RF- magnetron sputtering technique with comb like Pt electrodes. Cobalt ions were successfully incorporated into the lattice of the ZnO nanostructure without changing its wurtzite structure. It was...

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Bibliographic Details
Published in:Journal of materials science & technology 2013-12, Vol.29 (12), p.1139-1145
Main Authors: Al-Salman, Husam S., Abdullah, M.J.
Format: Article
Language:English
Subjects:
Characterization
Co-doped ZnO
Electrodes
Lattices
Luminescence
Nanostructure
Photodetectors
Photosensitivity
Sputtering
UV photodetector
Zinc oxide
ZnO
制备
射频溅射
射频磁控溅射技术
紫外探测器
编制
表征
钴掺杂
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Summary:Undoped and 1 at.% Co-doped ZnO nanostructure based UV photodetectors were successfully fabricated by RF- magnetron sputtering technique with comb like Pt electrodes. Cobalt ions were successfully incorporated into the lattice of the ZnO nanostructure without changing its wurtzite structure. It was indicated that Co-doping can effectively adjust the luminescence properties of the ZnO nanostructure. The undoped and Co-doped ZnO photodetectors were observed to have photosensitivities of 1.44 x 104 % and 8.57 x 102 % and low dark currents of 9.74 x 10-8 A and 1.18 x 10-7 A, respectively.
ISSN:1005-0302
1941-1162
DOI:10.1016/j.jmst.2013.10.007