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Effect of butanol and salt concentration on solid-state nanopores resistance

The objective of this study was to demonstrate the possibility of using 1-butanol to reliably detect the open-pore current of pyramidal solid-state nanopores produced in silicon wafers. The nanopores were produced through controlled pore formation by neutralizing an etchant (KOH) with a strong acid...

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Main Authors: Vega, Milena, Perez, Maximiliano, Granell, Pablo, Golmar, Federico, Wloka, Carsten, Maglia, Giovanni, Dieguez, Maria Jose, Del Valle, Eva María, Lasorsa, Carlos, Lerner, Betiana
Format: info:ar-repo/semantics/artículo
Language:Inglés
Published: Taylor & Francis 2021
Subjects:
Silicon
Resistance to Chemicals
Silicio
Butanol
Resistencia a Productos Químicos
Nanopores
Nanoporos
Online Access:http://hdl.handle.net/20.500.12123/8724
https://www.tandfonline.com/doi/full/10.1080/23312009.2016.1225345
https://doi.org/10.1080/23312009.2016.1225345
Summary:The objective of this study was to demonstrate the possibility of using 1-butanol to reliably detect the open-pore current of pyramidal solid-state nanopores produced in silicon wafers. The nanopores were produced through controlled pore formation by neutralizing an etchant (KOH) with a strong acid (HCl). Since nanopores produced by this method are deeper than those made in nanometer-thick membranes, they behave as nanochannels. As a consequence, the open-pore current detection is more challenging. Thus, we report that low amounts of butanol considerably aid in the detection of the open-pore current of nanopores.

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