Highly Sensitive Ethanol Gas Sensors Based on Ag-Doped ZnO Nanocones
Herein, we report the successful synthesis, characterization and ethanol gas sensing applications of Ag-doped ZnO nanocones. The Ag-doped ZnO nanocones were synthesized by a facile hydrothermal process and characterized using various analytical tools such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and UV-visible spectroscopy. The detailed studies revealed that the synthesized Ag-doped ZnO nanocones possess good crystallinity and optical properties. Finally, the prepared Ag-doped ZnO nanocones were used as an electrode material to fabricate highly sensitive and selective gas sensors for reducing gases such as C2H5OH, H2 and CO. The fabricated Ag-doped ZnO nanocones based sensors exhibited a higher response for C2H5OH as compared to H2 and CO. Moreover, at a lower operating temperature of 400 °C, excellent sensitivity was reported for C2H5OH as compared to the higher temperature of 450 °C.
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Document Type: Short Communication
Publication date: March 1, 2016
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- 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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