Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

Budi  Riza Putra; Barak D. B.  Aaranson; Elena Madrid; Klaus Mathwig; Mariolino Carta; Neil McKeown; Frank Marken

doi:10.1002/elan.201700247

Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

Budi Riza Putra, Barak D. B. Aaranson, Elena Madrid, Klaus Mathwig, Mariolino Carta, Neil McKeown, Frank Marken

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.

Original language	English
Journal	Electroanalysis
Early online date	27 Jun 2017
DOIs	https://doi.org/10.1002/elan.201700247
Publication status	E-pub ahead of print - 27 Jun 2017

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10.1002/elan.201700247

20170627 McKeown Heterojunction_1f_revision_nhAccepted author manuscript, 2.14 MBLicence: Creative Commons: Attribution Non-Commercial (CC-BY-NC)

http://onlinelibrary.wiley.com/doi/10.1002/elan.201700247/abstract;jsessionid=63120D577DC20BB51FEB7166222FF8AF.f04t02

New Materials for Ionic Diodes and Ionic Photodiodes
McKeown, N.
UK-based charities
1/11/15 → 4/01/18
Project: Research

Cite this

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title = "Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate",

abstract = "Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures. ",

author = "{Riza Putra}, Budi and Aaranson, {Barak D. B.} and Elena Madrid and Klaus Mathwig and Mariolino Carta and Neil McKeown and Frank Marken",

year = "2017",

month = jun,

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doi = "10.1002/elan.201700247",

language = "English",

journal = "Electroanalysis",

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AU - Riza Putra, Budi

AU - Aaranson, Barak D. B.

AU - Madrid, Elena

AU - Mathwig, Klaus

AU - Carta, Mariolino

AU - McKeown, Neil

AU - Marken, Frank

PY - 2017/6/27

Y1 - 2017/6/27

N2 - Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.

AB - Ionic diode phenomena occur at asymmetric ionomer | aqueous electrolyte microhole interfaces. Depending on the applied potential, either an “open” or a “closed” diode state is observed switching between a high ion flow rate and a low ion flow rate. Physically, the “open” state is associated mainly with conductivity towards the microhole within the ionomer layer and the “closed” state is dominated by restricted diffusion-migration access to the microhole interface opposite to the ionomer. In this report we explore a “heterojunction” based on an asymmetric polymer of intrinsic microporosity (PIM) | Nafion ionomer microhole interface. Improved diode characteristics and current rectification are observed in aqueous NaCl. The effects of creating the PIM | Nafion micro-interface are investigated and suggested to lead to novel sensor architectures.

U2 - 10.1002/elan.201700247

DO - 10.1002/elan.201700247

M3 - Article

SN - 1040-0397

JO - Electroanalysis

JF - Electroanalysis

ER -

Ionic Diode Characteristics at a Polymer of Intrinsic Microporosity (PIM) | Nafion “Heterojunction” Deposit on a Microhole Poly(ethylene-terephthalate) Substrate

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Projects

New Materials for Ionic Diodes and Ionic Photodiodes

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