ZnO Nanorod Arrays Applied as Broad-Spectrum Sensors for Detecting Various Volatile Organic Solvents
A gas sensor based on ZnO nanorod arrays was fabricated by a low temperature hydrothermal deposition combined with the dip-coating method. The ZnO nanorod arrays were deposited directly on the ceramic tubes coated with ZnO seed layer in advance. The microstructure and the morphology
of the product were investigated by X-ray diffraction (XRD), Raman and field emission scanning electron microscope (FE-SEM). The gas sensing properties of the ZnO nanorod arrays to various volatile organic solvents were investigated in detail. And the sensor based on the ZnO nanorod arrays
showed high response to these vapors such as ethanol, acetone, benzene and N,N-dimethylfomamide (DMF). The ZnO nanorods sensor can be applied as the broad-spectrum solid-state sensor to monitor various solvent vapors that may be present in the chemicalworks and laboratory.
Keywords: GAS SENSOR; HYDROTHERMAL; VOLATILE ORGANIC SOLVENT; ZNO NANOROD ARRAY
Document Type: Research Article
Publication date: 01 December 2012
- Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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