The Sensing Properties of Single Y-Doped SnO2 Nanobelt Device to Acetone

Xinmin Li; Yingkai Liu; Shuanghui Li; Jieqing Huang; Yuemei Wu; Dapeng Yu

doi:10.1186/s11671-016-1685-1

The Sensing Properties of Single Y-Doped SnO₂ Nanobelt Device to Acetone

Nanoscale Res Lett. 2016 Dec;11(1):470. doi: 10.1186/s11671-016-1685-1. Epub 2016 Oct 21.

Authors

Xinmin Li^{1

2}, Yingkai Liu^{3

4

5}, Shuanghui Li^{1

2}, Jieqing Huang^{1

2}, Yuemei Wu^{1

2}, Dapeng Yu^{2

6}

Affiliations

¹ Key Laboratory of Yunnan Higher Education Institutes for Optoelectronic Information and Technology, Kunming, 650500, People's Republic of China.
² Institute of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China.
³ Key Laboratory of Yunnan Higher Education Institutes for Optoelectronic Information and Technology, Kunming, 650500, People's Republic of China. ykliu@ynnu.edu.cn.
⁴ Key Laboratory of Yunnan Normal University for Photoelectric Materials & Device, Kunming, 650500, People's Republic of China. ykliu@ynnu.edu.cn.
⁵ Institute of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China. ykliu@ynnu.edu.cn.
⁶ Department of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing, 100871, People's Republic of China.

Abstract

Pure SnO₂ and Y-doped SnO₂ nanobelts were prepared by thermal evaporation at 1350 °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 °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.

Keywords: Acetone; Gas sensor; Optical properties; SnO2 nanobelts; Y3+ doping.