Journal
NANO LETTERS
Volume 7, Issue 3, Pages 552-556Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl062924b
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We present a nanofluidic diode that at voltage range -5 to +5 V rectifies ion current with degrees of rectification reaching several hundreds. The diode is based on a single asymmetric nanopore whose surface was patterned so that a sharp boundary between positively and negatively charged regions is created. This boundary defines a zone that is enriched with positive and negative ions or creates a depletion zone. The principle of operation of the nanofluidic diode is analogous to that of a bipolar semiconductor diode.
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