整改
纳米器件
碳酸盐
二极管
材料科学
纳米技术
离子
聚酰亚胺
门控
纳米孔
纳米流体学
光电子学
化学
电压
有机化学
电气工程
图层(电子)
生理学
工程类
冶金
生物
作者
Ganhua Xie,Kai Xiao,Zhen Zhang,Xiang‐Yu Kong,Qian Liu,Pei Li,Liping Wen,Lei Jiang
标识
DOI:10.1002/anie.201505269
摘要
Abstract A smart nanofluidic diode that exhibits both ion gating and ion current rectification has been developed using a 1‐(4‐amino‐phenyl)‐2,2,2‐trifluoro‐ethanone‐functionalized, conical nanochannel in a polyimide (PI) membrane. The switch‐like property can be tuned by controlling the wettability and charge distribution with carbonate ions. Such a nanodevice is advantageous for precisely controlling conductive states with an ultrahigh gating ratio of up to 5000, and a high rectification ratio of 27. By virtue of the high selectivity and sensitivity for carbonate ions, this nanofluidic diode may find applications in carbonate or carbon dioxide detection.
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