A graphene field-effect capacitor sensor in electrolyte

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	A graphene field-effect capacitor sensor in electrolyte
	S. Chen; Z. B. Zhang; L. P. Ma; P. Ahlberg; X. D. Gao; Z. J. Qiu; D. P. Wu; W. C. Ren; H. M. Cheng; S. L. Zhang
	2012
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	101 期号:15
摘要	The unique electronic properties of graphene are exploited for field-effect sensing in both capacitor and transistor modes when operating the sensor device in electrolyte. The device is fabricated using large-area graphene thin films prepared by means of layer-by-layer stacking. Although essentially the same device, its operation in the capacitor mode is found to yield more information than in the transistor mode. The capacitor sensor can simultaneously detect the variations of surface potential and electrical-double-layer capacitance at the graphene/electrolyte interface when altering the ion concentration. The capacitor-mode operation further facilitates studies of the molecular binding-adsorption kinetics by monitoring the capacitance transient. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4759147]
部门归属	[chen, si; zhang, zhi-bin; ahlberg, patrik; gao, xindong; zhang, shi-li] uppsala univ, angstrom lab, div solid state elect, se-75121 uppsala, sweden. [ma, laipeng; ren, wencai; cheng, hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [qiu, zhijun; wu, dongping] fudan univ, sch microelect, state key lab asic & syst, shanghai 200433, peoples r china.;zhang, sl (reprint author), uppsala univ, angstrom lab, div solid state elect, pob 534, se-75121 uppsala, sweden.;shili.zhang@angstrom.uu.se
关键词	Effect Transistors Gate Electrodes Biosensors Nanotubes Films
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/59908
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Chen,Z. B. Zhang,L. P. Ma,et al. A graphene field-effect capacitor sensor in electrolyte[J]. Applied Physics Letters,2012,101(15).
APA	S. Chen.,Z. B. Zhang.,L. P. Ma.,P. Ahlberg.,X. D. Gao.,...&S. L. Zhang.(2012).A graphene field-effect capacitor sensor in electrolyte.Applied Physics Letters,101(15).
MLA	S. Chen,et al."A graphene field-effect capacitor sensor in electrolyte".Applied Physics Letters 101.15(2012).