DocumentCode
1427201
Title
Synthesis of 1D ZnO Crystals and Sensing Properties for 
Gas
Author
Bai, S.L. ; Chen, L.Y. ; Luo, R.X. ; Zhang, K.W. ; Li, D.Q. ; Chen, A.F. ; Liu, C.C.
Author_Institution
State Key Lab. of Chem. Resource Eng., Beijing Univ. of Chem. Technol., Beijing, China
Volume
11
Issue
9
fYear
2011
Firstpage
1969
Lastpage
1974
Abstract
One-dimensional (1D) ZnO nanocrystals with different morphologies and sizes including pencil-like, flower-like and needle-like, have been hydrothermally synthesized with cetyltrimethyl ammonium bromide (CTAB), sodium dodecyl sulphate (SDS), and polyethylene glycol (PEG) assisted. This paper focuses on the material synthesis, structure and application for NO2 sensor. Experimental results show that the sensor based on ZnO nanorods not only had high response to NO2 but also exhibited high selectivity to CO and CH4 in same gas concentration. The response was greatly enhanced by doping Cd of transition metal, the effect of Cd loading on ZnO sensing property has been discussed by X-ray photoelectron spectroscopy (XPS) analysis.
Keywords
II-VI semiconductors; X-ray photoelectron spectra; cadmium; gas sensors; liquid phase deposition; nanofabrication; nanorods; nitrogen compounds; semiconductor growth; wide band gap semiconductors; zinc compounds; CTAB; NO2; PEG; X-ray photoelectron spectroscopy analysis; XPS analysis; ZnO:Cd; cetyltrimethyl ammonium bromide; gas concentration; gas sensor; hydrothermal synthesis; material synthesis; nanorods; one-dimensional nanocrystal synthesis; polyethylene glycol; sodium dodecyl sulphate; transition metal doping; Crystals; Surface morphology; Temperature sensors; Zinc oxide; ${rm NO}_{2}$ ; one-dimensional (1D) ZnO; sensing property; synthesis technology;
fLanguage
English
Journal_Title
Sensors Journal, IEEE
Publisher
ieee
ISSN
1530-437X
Type
jour
DOI
10.1109/JSEN.2011.2106155
Filename
5688275
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