Transition-Metal-Doped p-Type ZnO Nanoparticle-Based Sensory Array for Instant Discrimination of Explosive Vapors

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	Transition-Metal-Doped p-Type ZnO Nanoparticle-Based Sensory Array for Instant Discrimination of Explosive Vapors
	Qu, J (Qu, Jiang); Ge, YR (Ge, Yuru); Zu, BY (Zu, Baiyi); Li, YX (Li, Yuxiang); Dou, XC (Dou, Xincun)
刊名	SMALL
	2016
卷号	12 期号:10 页码:1369-1377
通讯作者	Zu, BY
英文摘要	The development of portable, real-time, and cheap platforms to monitor ultratrace levels of explosives is of great urgence and importance due to the threat of terrorism attacks and the need for homeland security. However, most of the previous chemiresistor sensors for explosive detection are suffering from limited responses and long response time. Here, a transition-metal-doping method is presented to remarkably promote the quantity of the surface defect states and to significantly reduce the charge transfer distance by creating a local charge reservoir layer. Thus, the sensor response is greatly enhanced and the response time is remarkably shortened. The resulting sensory array can not only detect military explosives, such as, TNT, DNT, PNT, PA, and RDX with high response, but also can fully distinguish some of the improvised explosive vapors, such as AN and urea, due to the huge response reaching to 100%. Furthermore, this sensory array can discriminate ppb-level TNT and ppt-level RDX from structurally similar and high-concentration interfering aromatic gases in less than 12 s. Through comparison with the previously reported chemiresistor or Schottky sensors for explosive detection, the present transition-metal-doping method resulting ZnO sensor stands out and undoubtedly challenges the best.
收录类别	SCI
WOS记录号	WOS:000372008200013
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/4549]
专题	新疆理化技术研究所_环境科学与技术研究室
作者单位	Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China;Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qu, J ,Ge, YR ,Zu, BY ,et al. Transition-Metal-Doped p-Type ZnO Nanoparticle-Based Sensory Array for Instant Discrimination of Explosive Vapors[J]. SMALL,2016,12(10):1369-1377.
APA	Qu, J ,Ge, YR ,Zu, BY ,Li, YX ,&Dou, XC .(2016).Transition-Metal-Doped p-Type ZnO Nanoparticle-Based Sensory Array for Instant Discrimination of Explosive Vapors.SMALL,12(10),1369-1377.
MLA	Qu, J ,et al."Transition-Metal-Doped p-Type ZnO Nanoparticle-Based Sensory Array for Instant Discrimination of Explosive Vapors".SMALL 12.10(2016):1369-1377.