DocumentCode
1495142
Title
An n-
/i-Diamond/p-Diamond Diode With Nanotip Structure for High-Temperature CO Sensing Applications
Author
Juang, Feng-Renn ; Chiu, Hung-Yu ; Fang, Yean-Kuen ; Cho, Kao-Hsien ; Chen, You-Chi
Author_Institution
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Volume
59
Issue
6
fYear
2012
fDate
6/1/2012 12:00:00 AM
Firstpage
1786
Lastpage
1791
Abstract
The Pd/n-SnOx/i-diamond/p-diamond diodes prepared by field-enhanced hot-wire CVD (HWCVD) (FEHWCVD) system on a silicon substrate with nanotip structures are studied systematically. Both the nanotip structure and the better film quality deposited by the FEHWCVD lead the developed p-i-n diamond diode to have a high relative sensitivity ratio of ~ 91% to 100-ppm-carbon monoxide (CO)-gas ambient. The sensitivity ratio is better than 79% compared to the one without the nanotip and prepared by the conventional HWCVD. Thus, the developed p-i-n diamond diode has better potential for high-temperature CO sensing applications.
Keywords
carbon compounds; chemical vapour deposition; diamond; gas sensors; p-i-n diodes; palladium; tin compounds; CO2; FEHWCVD system; Pd-SnOx-C; Si; field-enhanced hot-wire CVD system; film quality deposition; high-temperature sensing application; nanotip structure; p-i-n diode; relative sensitivity ratio; Diamond-like carbon; Nanostructures; P-i-n diodes; Sensitivity; Sensors; Silicon; Substrates; $hbox{SnO}_{x}$ ; CO sensor; diamond; p-i-n diode;
fLanguage
English
Journal_Title
Electron Devices, IEEE Transactions on
Publisher
ieee
ISSN
0018-9383
Type
jour
DOI
10.1109/TED.2012.2191408
Filename
6183505
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