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

作者：Xinmin Li, Yingkai Liu, Shuanghui Li, Jieqing Huang, Yuemei Wu, Dapeng Yu · 发表于：Nanoscale Research Letters · 年份：2016 · DOI：10.1186/s11671-016-1685-1 · 被引用次数：41 · 研究领域：Gas Sensing Nanomaterials and Sensors、Analytical Chemistry and Sensors、ZnO doping and properties

Pure SnO 2 and Y-doped SnO 2 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 SnO 2 nanobelt and Y-doped SnO 2 nanobelt were explored to acetone, ethanol, and ethanediol. It reveals that the sensitivity of single Y-doped SnO 2 nanobelt device is 11.4 to 100 ppm of acetone at 210 °C, which is the highest response among the three tested VOC gases. Y 3+ ions improve the sensitivity of SnO 2 sensor and have an influence on the optical properties of Y-doped SnO 2 nanobelts.