Descreening of Field Effect in Electrically Gated Nanopores

Details Descreening of Field Effect in Electrically Gated Nanopores Descreening of Field Effect in Electrically Gated Nanopores

2010-05-27

arxiv.org/abs/1005.5187v3

Y. Liu, D. Huber, V. Tabard-Cossa, and R. Dutton, Applied Physics Letters, vol. 97, p.143109, 2010

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1063/1.3497276

This modeling work investigates the electrical modulation characteristics of field-effect gated nanopores. Highly nonlinear current modulations are observed in nanopores with non-overlapping electric double layers, including those with pore diameters 100 times the Debye screening length. We attribute this extended field-effect gating to a descreening effect, i.e. the counter-ions do not fully relax to screen the gating potential due to the presence of strong ionic transport.

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