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NO2 sensing at room temperature using vertically aligned MoS2 flakes network
R. Kumar, N. Goel,
Published in American Institute of Physics Inc.
Volume: 1942
To exploit the role of alignment of MoS2 flake in chemical sensing, here, we have synthesized the horizontally and vertically aligned MoS2 flake network using conventional chemical vapor deposition technique. The morphology and number of layers were confirmed by SEM and Raman spectroscopy, respectively. The sensing performance of horizontally aligned and vertically aligned flake network was investigated to NO2 at room temperature. Vertically aligned MoS2 based sensor showed higher sensitivity ~51.54 % and ~63.2 % compared to horizontally aligned MoS2 sensor' sensitivity of ~35.32 % and ~45.2 % to 50 ppm and 100 ppm NO2, respectively. This high sensitivity attributed to the high aspect ratio and high adsorption energy on the edge site of vertically aligned MoS2. © 2018 Author(s).
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JournalData powered by TypesetAIP Conference Proceedings
PublisherData powered by TypesetAmerican Institute of Physics Inc.