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Charging a Capacitor from an External Fluctuating Potential using a Single Conical Nanopore

Gomez, Vicente ; Ramirez, Patricio ; Cervera, Javier ; Nasir, Saima ; Ali, Mubarak ; Ensinger, Wolfgang ; Mafe, Salvador (2015):
Charging a Capacitor from an External Fluctuating Potential using a Single Conical Nanopore.
In: Scientific Reports, 5, p. 9501. [Article]

Abstract

We explore the electrical rectification of large amplitude fluctuating signals by an asymmetric nanostructure operating in aqueous solution. We show experimentally and theoretically that a load capacitor can be charged to voltages close to 1 V within a few minutes by converting zero time-average potentials of amplitudes in the range 0.5�3 V into average net currents using a single conical nanopore. This process suggests that significant energy conversion and storage from an electrically fluctuating environment is feasible with a nanoscale pore immersed in a liquid electrolyte solution, a system characteristic of bioelectronics interfaces, electrochemical cells, and nanoporous membranes.

Item Type: Article
Erschienen: 2015
Creators: Gomez, Vicente ; Ramirez, Patricio ; Cervera, Javier ; Nasir, Saima ; Ali, Mubarak ; Ensinger, Wolfgang ; Mafe, Salvador
Title: Charging a Capacitor from an External Fluctuating Potential using a Single Conical Nanopore
Language: English
Abstract:

We explore the electrical rectification of large amplitude fluctuating signals by an asymmetric nanostructure operating in aqueous solution. We show experimentally and theoretically that a load capacitor can be charged to voltages close to 1 V within a few minutes by converting zero time-average potentials of amplitudes in the range 0.5�3 V into average net currents using a single conical nanopore. This process suggests that significant energy conversion and storage from an electrically fluctuating environment is feasible with a nanoscale pore immersed in a liquid electrolyte solution, a system characteristic of bioelectronics interfaces, electrochemical cells, and nanoporous membranes.

Journal or Publication Title: Scientific Reports
Journal volume: 5
Uncontrolled Keywords: Chemical physics, Nanopores
Divisions: 11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences
Date Deposited: 07 Apr 2015 08:23
Official URL: http://www.nature.com/srep/2015/150330/srep09501/full/srep09...
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