Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 552-556 |
| Number of pages | 5 |
| Journal | Nano Letters |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2007 |
| Externally published | Yes |