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
Link To Document :
