期刊
NANO LETTERS
卷 16, 期 4, 页码 2189-2197出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b04246
关键词
Ionic diode; ion selectivity; high current; self-assembly; nanoparticle
类别
资金
- National Research Foundation of Korea (NRF) - Korean government (MSIP) [NRF-2013R1A1A2073271, NRF-2015R1A2A2A04006181]
- Industrial Materials Fundamental Technology Development Program - Ministry of Trade, Industry and Energy(MOTIE) of Korea [10052981]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10052981] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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.
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