Journal
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
Volume 18, Issue -, Pages 52-58Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2013.10.028
Keywords
Gas sensing; Optical property; Structural property; ZnO
Categories
Funding
- National Natural Science of China [51202302]
- Fundamental Research Funds for the Central Universities [CDJZR12110051]
- Chongqing University's Large-Scale Equipment [2012121514]
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Morphological transformation was achieved from ZnO hexagonal needle-like rods to hexagonal flower-like rods by varying the reaction growth time using the hydrothermal method. Optical bandgap energies were calculated from the absorption spectra using UV-vis spectroscopy. Gas sensing properties of flower-like hexagonal ZnO structures at 50 ppm for ethanol (C2H5OH) and nitrogen dioxide (NO2) at different temperatures were analyzed. The sensor showed a higher response toward C2H5OH than NO2 gas at 350 degrees C. (C) 2013 Elsevier Ltd. All rights reserved.
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