Large-scale synthesis of single-crystalline self-standing SnSe2 nanoplate arrays for wearable gas sensors

	Large-scale synthesis of single-crystalline self-standing SnSe2 nanoplate arrays for wearable gas sensors
	Ming Chen; Zhenkai Li; Weimin Li; Chengwei Shan; Wenjie Li; Kaiwei Li; Guoqiang Gu; Ye Feng; Guohua Zhong; Lei Wei
刊名	Nanotechnology
	2018
文献子类	期刊论文
英文摘要	Advances in two-dimensional semiconducting thin films enable the realization of wearable electronic devices in the form factor of flexible substrate/thin films that can be seamlessly adapted in our daily lives. For wearable gas sensing, two-dimensional materials, such as SnSe2, are particularly favorable because of their high surface-to-volume ratio and strong adsorption of gas molecules. Chemical vapor deposition and liquid/mechanical exfoliation are the widely applied techniques to obtain SnSe2 thin films. However, these methods normally result in nonuniform and isolated flakes which cannot apply to the practical industrial-scale wearable electronic devices. Here, we demonstrate large-scale (10 cm × 10 cm), uniform, and selfstanding SnSe2 nanoplate arrays by co-evaporation process on flexible polyimide substrates. Both structural and morphological properties of the resulting SnSe2 nanoplates are systematically investigated. Particularly, the single-crystalline SnSe2 nanoplates are achieved. Furthermore, we explore the application of the polyimide/SnSe2 nanoplate arrays as wearable gas sensors for detecting methane. The wearable gas sensors show high sensitivity, fast response and recovery, and good uniformity. Our approach not only provides an efficient technique to obtain large-area, uniform and high-quality single-crystalline SnSe2 nanoplates, but also impacts on the future developments of layered metal dichalcogenides-based wearable devices.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/13483]
专题	深圳先进技术研究院_集成所
推荐引用方式 GB/T 7714	Ming Chen,Zhenkai Li,Weimin Li,et al. Large-scale synthesis of single-crystalline self-standing SnSe2 nanoplate arrays for wearable gas sensors[J]. Nanotechnology,2018.
APA	Ming Chen.,Zhenkai Li.,Weimin Li.,Chengwei Shan.,Wenjie Li.,...&Chunlei Yang.(2018).Large-scale synthesis of single-crystalline self-standing SnSe2 nanoplate arrays for wearable gas sensors.Nanotechnology.
MLA	Ming Chen,et al."Large-scale synthesis of single-crystalline self-standing SnSe2 nanoplate arrays for wearable gas sensors".Nanotechnology (2018).