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Selective detection of NO2 and C2H5OH using a Co3O4-decorated ZnO nanowire network sensor
Chan Woong Na1, Hyung-Sik Woo, Il-Doo Kim
1Department of Materials Science and Engineering, Korea University, Seoul 136-713, Republic of Korea.
Chemical Communications (Cambridge, England)
|March 19, 2011
Abstract:
The selective detection of two different gases, NO(2) and C(2)H(5)OH, has been achieved using a p-type Co(3)O(4)-decorated n-type ZnO nanowire (NW) network sensor. The gas selectivity was explained by the catalytic effect of nanocrystalline Co(3)O(4) and the extension of the electron depletion layer via the formation of p-n junctions.
