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Title: | Room temperature hydrogen and hydrocarbon sensors based on single nanowires of metal oxides |
Authors: | Rout, Chandra Sekhar Kulkarni, G U Rao, C N R |
Keywords: | Ethanol Sensing Characteristics Zno Nanorod Arrays Gas Sensors High-Sensitivity Zinc-Oxide In2o3 Nanocrystals Fabrication Nanotubes |
Issue Date: | 7-May-2007 |
Publisher: | IOP Publishing Ltd |
Citation: | Journal of Physics D:Applied Physics 40(9), 2777-2782 (2007) |
Abstract: | Hydrogen sensing characteristics of single nanowires of ZnO, TiO2 and WO2.72 have been investigated by contact mode atomic force microscopy. All these nanostructures are able to sense hydrogen, but the WO2.72 nanowire ( 40 nm diam) exhibits the highest sensitivity of 22 for 1000 ppm at 298 K. The WO2.72 nanowire is also found to be good at sensing aliphatic hydrocarbons in the form of liquefied petroleum gas with a sensitivity of 15 for 1000 ppm at room temperature. A WO2.72 nanowire with a diameter of 40 nm shows better sensing characteristics than a nanowire of 16 nm diameter. |
Description: | Restricted Access |
URI: | https://libjncir.jncasr.ac.in/xmlui/10572/321 |
Other Identifiers: | 0022-3727 |
Appears in Collections: | Research Papers (Prof. C.N.R. Rao) |
Files in This Item:
File | Description | Size | Format | |
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2007 J Phys D Appl Phys 40 2777.pdf Restricted Access | 822.83 kB | Adobe PDF | View/Open Request a copy |
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