Ion current rectification in funnel-shaped nanochannels: Hysteresis and   inversion effects

doi:10.1063/1.4936915

CORC > 北京大学 > 信息科学技术学院

	Ion current rectification in funnel-shaped nanochannels: Hysteresis and inversion effects
	Rosentsvit, Leon ; Wang, Wei ; Schiffbauer, Jarrod ; Chang, Hsueh-Chia ; Yossifon, Gilad
刊名	JOURNAL OF CHEMICAL PHYSICS
	2015
关键词	CONCENTRATION POLARIZATION NANOPORES ENRICHMENT MEMBRANES CHANNELS GLASS
DOI	10.1063/1.4936915
英文摘要	Ion current rectification inversion is observed in a funnel-shaped nanochannel above a threshold voltage roughly corresponding to the under-limiting to over-limiting current transition. Previous experimental studies have examined rectification at either low-voltages (under-limiting current region) for conical nanopores/funnel-shaped nanochannels or at high-voltages (over-limiting region) for straight nanochannels with asymmetric entrances or asymmetric interfacing microchannels. The observed rectification inversion occurs because the system resistance is shifted, beyond a threshold voltage, from being controlled by intra-channel ion concentration-polarization to that controlled by external concentration-polarization. Additionally, strong hysteresis effects, due to residual concentration-polarization, manifest themselves through the dependence of the transient current rectification on voltage scan rate. (C) 2015 AIP Publishing LLC.; US-Israel Binational Science Foundation (BSF) [2009371]; Major State Basic Research Development Program (973 Program) [2011CB309502, 2015CB352100]; National Natural Science Foundation of China [81471750, 91323304]; SCI(E); EI; PubMed; ARTICLE; yossifon@technion.ac.il; 22; 224706; 143
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/435590]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Rosentsvit, Leon,Wang, Wei,Schiffbauer, Jarrod,et al. Ion current rectification in funnel-shaped nanochannels: Hysteresis and inversion effects[J]. JOURNAL OF CHEMICAL PHYSICS,2015.
APA	Rosentsvit, Leon,Wang, Wei,Schiffbauer, Jarrod,Chang, Hsueh-Chia,&Yossifon, Gilad.(2015).Ion current rectification in funnel-shaped nanochannels: Hysteresis and inversion effects.JOURNAL OF CHEMICAL PHYSICS.
MLA	Rosentsvit, Leon,et al."Ion current rectification in funnel-shaped nanochannels: Hysteresis and inversion effects".JOURNAL OF CHEMICAL PHYSICS (2015).