Abstract
Gas-sensing performances can often be enhanced significantly once the size of sensing nanomaterials approaches a critical value of 15 nm. Here, we synthesize, by a simple hydrothermal method accompanied by the calcination process, ultrathin ZnO nanosheets with a thickness as thin as 10-13 nm. We find that the prepared zinc hydroxide carbonate precursor is largely agglomerated, yet transformed to the ultrathin ZnO nanosheets in a dispersive fashion after the calcination process. The as-prepared ultrathin nanosheets exhibit excellent gas-sensing functions to ethanol gas at the optimal temperature as low as 300 C under the concentration of 50 ppm, rendering them a promising sensing material for the on-site detection of ethanol.
Original language | English |
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Pages (from-to) | 1764-1769 |
Number of pages | 6 |
Journal | Journal of Materials Science: Materials in Electronics |
Volume | 24 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2013 Jun |
ASJC Scopus subject areas
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering