气候变化领域集成服务门户(CCPortal): Nanotube molecular wires as chemical sensors

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DOI	10.1126/science.287.5453.622
	Nanotube molecular wires as chemical sensors
	Kong J.; Franklin N.R.; Zhou C.; Chapline M.G.; Peng S.; Cho K.; Dai H.
发表日期	2000
ISSN	0036-8075
起始页码	622
结束页码	625
卷号	287 期号:5453
英文摘要	Chemical sensors based on individual single-walled carbon nanotubes (SWNTs) are demonstrated. Upon exposure to gaseous molecules such as NO2 or NH3, the electrical resistance of a semiconducting SWNT is found to dramatically increase or decrease. This serves as the basis for nanotube molecular sensors. The nanotube sensors exhibit a fast response and a substantially higher sensitivity than that of existing solid-state sensors at room temperature. Sensor reversibility is achieved by slow recovery under ambient conditions or by heating to high temperatures. The interactions between molecular species and SWNTs and the mechanisms of molecular sensing with nanotube molecular wires are investigated.
英文关键词	ammonia; carbon; nanoparticle; nitrogen dioxide; article; chemosensitivity; electric resistance; gas; heating; molecular interaction; physical chemistry; priority journal; semiconductor; sensor; tube
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244384
作者单位	Department of Chemistry, Stanford University, Stanford, CA 94305, United States; Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, United States
推荐引用方式 GB/T 7714	Kong J.,Franklin N.R.,Zhou C.,et al. Nanotube molecular wires as chemical sensors[J],2000,287(5453).
APA	Kong J..,Franklin N.R..,Zhou C..,Chapline M.G..,Peng S..,...&Dai H..(2000).Nanotube molecular wires as chemical sensors.Science,287(5453).
MLA	Kong J.,et al."Nanotube molecular wires as chemical sensors".Science 287.5453(2000).