High Current Ionic Diode Using Homogeneously Charged Asymmetric Nanochannel Network Membrane

被引：68
作者：
Choi, Eunpyo [1 ]
Wang, Cong [1 ]
Chang, Gyu Tae [1 ]
Park, Jungyul [1 ]
机构：
[1] Sogang Univ, 35 Baekbeom Ro Sinsu Dong, Seoul 121742, South Korea
来源：
NANO LETTERS | 2016年 / 16卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
Ionic diode; ion selectivity; high current; self-assembly; nanoparticle; CURRENT RECTIFICATION; CONCENTRATION-GRADIENT; CURRENT EFFICIENCY; NANOFLUIDIC DIODES; EXCHANGE MEMBRANES; TRANSPORT; NANOPORES; DIFFUSION; BIOMOLECULES;
D O I：
10.1021/acs.nanolett.5b04246
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A high current ionic diode is achieved using an asymmetric nanochannel network membrane (NCNM) constructed by soft lithography and in situ self-assembly of nanoparticles with uniform surface charge. The asymmetric NCNM exhibits high rectified currents without losing a rectification ratio because of its ionic selectivity gradient and differentiated electrical conductance. Asymmetric ionic transport is analyzed with diode-like I V curves and visualized via fluorescent dyes, which is closely correlated with ionic selectivity and ion distribution according to variation of NCNM geometries.
引用
收藏
页码：2189 / 2197
页数：9
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