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Development of microstructure CO sensor based on hierarchically porous ZnO nanosheet thin films
- Source :
-
Sensors & Actuators B: Chemical . Oct2012, Vol. 173, p897-902. 6p. - Publication Year :
- 2012
-
Abstract
- Abstract: A microstructure sensor based on hierarchically porous ZnO nanosheet (NS) thin films has been achieved by using a facile two-step solution phase method. The transparent ZnO seed-layer covered on both the conducting electrodes and the insulating SiO2 spacer regions acts as lattice-matched template, on which the assembly of ZnO NS thin films has been subsequently completed via a facile solvothermal process. The phase purity, morphology, and structure of the as-prepared NSs are investigated, and the results reveal that ZnO NSs, grown vertically on the substrate, exhibit hierarchically porous nanostructure with subunits of nanoparticles. The gas-sensing properties exhibit not only high response to CO with the response time of 25s, but also low cross response to common interference gases at the operating temperature of 300°C. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09254005
- Volume :
- 173
- Database :
- Academic Search Index
- Journal :
- Sensors & Actuators B: Chemical
- Publication Type :
- Academic Journal
- Accession number :
- 82106980
- Full Text :
- https://doi.org/10.1016/j.snb.2012.05.090