Fabrication of nanopores in polymer foils with surfactant-controlled longitudinal profiles

被引：114

作者：

Apel, Pavel Yu

Blonskaya, Irina V.

Dmitriev, Sergei N.

Orelovitch, Oleg L.

Presz, Adam

Sartowska, Bozena A.

机构：

[1] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Russia

[2] Polish Acad Sci, Inst High Pressure Phys, PL-01142 Warsaw, Poland

[3] Inst Nucl Chem & Technol, PL-03195 Warsaw, Poland

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 30期

关键词：

D O I：

10.1088/0957-4484/18/30/305302

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a surfactant-controlled etching method which allows the production of asymmetric track-etched nanopore membranes with diode-like ionic conductivity. The asymmetry of the pores is provided by self-assembly of amphiphilic molecules at the pore entrances on one side of the membrane during chemical etching while this process is excluded on the other side. By varying the alkali concentration in the etchant, control over the pore profile is achieved. The pore geometry is characterized in detail using field-emission scanning electron microscopy. The method is equally applicable to membranes with many and with single pores and may constitute an alternative to existing methods of production of resistive-pulse sensors.

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页数：7

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