Abstract

A thin film of Nafion, of approximately 5 μm thickness, asymmetrically deposited onto a 6 μm thick film of poly(ethylene terephthalate) (PET) fabricated with a 5, 10, 20, or 40 μm microhole, is shown to exhibit prominent ionic diode behavior involving cation charge carrier (“cationic diode”). The phenomenon is characterized via voltammetric, chronoamperometric, and impedance methods. Phenomenologically, current rectification effects are comparable to those observed in nanocone devices where space-charge layer effects dominate. However, for microhole diodes a resistive, a limiting, and an overlimiting potential domain can be identified and concentration polarization in solution is shown to dominate in the closed state.
Original languageEnglish
Pages (from-to)11272-11278
JournalACS Applied Materials and Interfaces
Volume9
Issue number12
DOIs
Publication statusPublished - 29 Mar 2017

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Diodes
Deposits
Polyethylene Terephthalates
Charge carriers
Electric space charge
Thick films
Polyethylene terephthalates
Cations
Positive ions
Polarization
Thin films
perfluorosulfonic acid

Cite this

A cationic diode based on asymmetric nafion film deposits. / He, Daping; Aaronson, Barak D. B.; Madrid, Elena; Fan, Lian; Doughty, James; Mathwig, Klaus; Bond, Alan M.; Mckeown, Neil B.; Marken, Frank.

In: ACS Applied Materials and Interfaces, Vol. 9, No. 12, 29.03.2017, p. 11272-11278.

Research output: Contribution to journalArticle

He, D, Aaronson, BDB, Madrid, E, Fan, L, Doughty, J, Mathwig, K, Bond, AM, Mckeown, NB & Marken, F 2017, 'A cationic diode based on asymmetric nafion film deposits', ACS Applied Materials and Interfaces, vol. 9, no. 12, pp. 11272-11278. https://doi.org/10.1021/acsami.7b01774
He, Daping ; Aaronson, Barak D. B. ; Madrid, Elena ; Fan, Lian ; Doughty, James ; Mathwig, Klaus ; Bond, Alan M. ; Mckeown, Neil B. ; Marken, Frank. / A cationic diode based on asymmetric nafion film deposits. In: ACS Applied Materials and Interfaces. 2017 ; Vol. 9, No. 12. pp. 11272-11278.
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AU - Mathwig, Klaus

AU - Bond, Alan M.

AU - Mckeown, Neil B.

AU - Marken, Frank

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