Fabrication of spindle-like ZnO architectures for highly sensitive gas sensors

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• 作者：Xiaoshuang Chen ; Xiaoyan Jing ; Jun Wang ; Jingyuan Liu ; Dalei Song ; Lianhe Liu
• 关键词：ZnO ; Oleylamine ; Spindle-like ; Gas sensor
• 刊名：Superlattices and Microstructures
• 出版年：2013
• 出版时间：November, 2013
• 年：2013
• 卷：63
• 期：Complete
• 页码：204-214
• 全文大小：1484 K

文摘

Spindle-like zinc oxide (ZnO) architectures with a width of about 230 nm and length of about 460 nm were successfully synthesized by a facile hydrothermal approach, and the structures were uniform and monodisperse. Oleylamine played a crucial role in controlling the morphology of ZnO products. The composition, morphology and structure of the products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM). A plausible formation mechanism of the spindle-like ZnO architecture was proposed. The gas sensing investigations indicated that the spindle-like ZnO architecture is an ideal candidate for fabricating highly sensitive gas sensors. Moreover, the sensing mechanism of the sensor has also been investigated.