Journal
NANOSCALE RESEARCH LETTERS
Volume 11, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1186/s11671-016-1685-1
Keywords
SnO2 nanobelts; Y3+ doping; Gas sensor; Optical properties; Acetone
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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Pure SnO2 and Y-doped SnO2 nanobelts were prepared by thermal evaporation at 1350 degrees C in the presence of Ar carrier gas (30 sccm). The samples were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), energy dispersion spectrometer (EDS), X-ray photoelectron spectrometer (XPS), UV-Vis absorption spectroscopy, Raman spectroscopy, and Fourier transform infrared spectrum (FTIR). The sensing properties of the devices based on a single SnO2 nanobelt and Y-doped SnO2 nanobelt were explored to acetone, ethanol, and ethanediol. It reveals that the sensitivity of single Y-doped SnO2 nanobelt device is 11.4 to 100 ppm of acetone at 210 A degrees C, which is the highest response among the three tested VOC gases. Y3+ ions improve the sensitivity of SnO2 sensor and have an influence on the optical properties of Y-doped SnO2 nanobelts.
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