Journal
CERAMICS INTERNATIONAL
Volume 42, Issue 9, Pages 10902-10907Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2016.03.223
Keywords
Yb-doped SnO2; Single nanobelt; Gas sensor; Ethanediol
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Funding
- National Natural Science Foundation of China [11164034]
- Key Applied Basic Research Program of Science and Technology Commission Foundation of Yunnan Province [2013FA035]
- Innovative talents of Science and Technology Plan Projects of Yunnan Province [2012HA007]
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Yb-doped SnO2 nanobelts (Yb-SnO2 NBs) and pure SnO2 nanobelts (SnO2 NBs) are successfully synthesized by thermal evaporation method and their composition and morphology are characterized. The single nanobelt device is fabricated by dual-ion beam deposition system, and the gas sensing performance to ethanediol, methanal, ethanol and acetone is investigated. The results show that the best working temperature of single Yb-SnO2 NB sensor to ethanediol is 190 degrees C, which is lower than that of pure counterpart and the highest sensitivity is 10.5 to 100 ppm of ethanediol. In addition, it is found that the response/recovery time is short and the sensor exhibits excellent selectivity and stability. The sensing performance of SnO2 NB is actually improved by Yb. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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