DocumentCode :
45603
Title :
ZnO-Based Solar Blind Ultraviolet-C Photodetectors Using SiZnO Absorption Layer
Author :
Ching-Ting Lee ; Tzu-Shun Lin
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Volume :
27
Issue :
8
fYear :
2015
fDate :
April15, 15 2015
Firstpage :
864
Lastpage :
866
Abstract :
The p-ZnO:LiNO3/i-SiZnO/n-ZnO:In (p-i-n) ZnO-based solar blind ultraviolet-C photodetectors were deposited by vapor cooling condensation system. In view of the high performances of the deposited ZnO-based films, the solar blind performance was resulted due to very low photoresponse in the visible (VIS) wavelength range. The ultraviolet (270 nm)/VIS (420 nm) rejection ratio of 
was obtained. The dominant noise was flicker noise. Furthermore, the photoresponsivity of 0.260 A/W, the noise equivalent power of 
W, and the specific detectivity of 
cmHz 
/W were obtained, when the photodetectors operated at a reverse bias voltage of −5 V.
Keywords :
II-VI semiconductors; condensation; cooling; flicker noise; optical noise; photodetectors; semiconductor thin films; silicon compounds; ultraviolet detectors; ultraviolet spectra; visible spectra; zinc compounds; absorption layer; flicker noise; photoresponsivity; ultraviolet-visible rejection ratio; vapor cooling condensation system; visible wavelength range; voltage -5 V; wavelength 270 nm; wavelength 420 nm; zinc oxide-based film deposition; zinc oxide-based solar blind ultraviolet-C photodetectors; Cooling; Films; Noise; Photodetectors; Powders; Zinc oxide; Photoresponsivity; SiZnO films; Solar blind ultraviolet-C photodetectors; Vapor cooling condensation system; ZnO-based photodetectors; solar blind ultraviolet-C photodetectors; vapor cooling condensation system;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2015.2398418
Filename :
7029053
Link To Document :
