Diode-like ion track asymmetric nanopores: some alternative methods of fabrication

Abstract : We present two fabrication methods which allow production of ion track nanopore membranes with pronounced geometrical asymmetry and diode-like ionic conductivity. The asymmetry of the pores is provided by self-assembly of surfactant molecules at ion track entrances on one side of the ion-irradiated polymer foil. On the other side of the membrane, the effect of surfactant is excluded using a pre-treatment with ultraviolet radiation or a surfactant-free etching solution. Highly tapered pore profiles are obtained and characterized using SEM and FESEM. In electrolyte solutions, the asymmetric pores thus fabricated exhibit a high rectification of electric current. The nanopores with a large angle aperture can be of interest for resistive-pulse technique applications and for the atomic beam projection nanolithography.
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Conference papers
The Seventh International Symposium on Swift Heavy Ions in Matter, Jun 2008, Lyon, France


https://hal.archives-ouvertes.fr/hal-00258254
Contributor : Pavel Apel <>
Submitted on : Monday, June 9, 2008 - 4:16:01 PM
Last modification on : Thursday, December 11, 2008 - 11:12:19 PM

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  • HAL Id : hal-00258254, version 1

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P.Yu Apel, I.V. Blonskaya, O.L. Orelovitch, S.N. Dmitriev. Diode-like ion track asymmetric nanopores: some alternative methods of fabrication. The Seventh International Symposium on Swift Heavy Ions in Matter, Jun 2008, Lyon, France. <hal-00258254>

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