1.29 Electroactive Polymeric Biomaterials ☆

Povlich, Laura K.

doi:10.1016/b978-0-12-803581-8.10233-4

Cited by 1 publication

(1 citation statement)

References 199 publications

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“…Doped conjugated polymers have resurged as enabling components in a variety of nascent technologies, including flexible integrated circuits, [1,2] hybrid supercapacitors, [3][4][5][6][7] tissue-compatible biosensors and medical implants, [8][9][10][11][12][13][14][15] and neural network simulants. [16] These soft electronic materials are also longstanding, reliable choices for conductive channels in ion sensors, [13][14][15] color modulators in electrochromic devices [17,18] and actuating materials in artificial muscles.…”

Section: Introductionmentioning

confidence: 99%

Deposition Dependent Ion Transport in Doped Conjugated Polymer Films: Insights for Creating High‐Performance Electrochemical Devices

Zhang

Andrew

2017

Adv Materials Inter

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Charge conduction and redox events in films of doped conjugated polymers are necessarily accompanied by counterion transport. However, insights into how deposition conditions affect ion transport in a structurally-diverse set of doped conjugated polymer films and across a polymer/electrolyte interface have not been gathered. Here, we use cyclic voltammetry and electrogravimetry measurements to probe solvent and ion transport across a doped conjugated polymer/electrolyte interface. A representative polymer, p-doped poly(3,4-ethlyenedioxythiophene) (PEDOT), obtained using two different deposition methods, vapor phase polymerization (VPP) and oxidative chemical vapor deposition (oCVD), is studied. PEDOT films obtained via VPP and oCVD display dissimilar morphologies at the micro-and nanometer length scales, resulting in significantly differing swelling behavior, mass trapping and ion transport upon exposure to a periodic applied This article is protected by copyright. All rights reserved. 2 potential. PEDOT films obtained using oCVD display notable permselectivity and near-ideal mass transport during repeated doping/dedoping cycles in various electrolytes, indicating that these films are robust electroactive materials. This study underlines the extent to which film deposition conditions affect ion transport across polymer/electrolyte interfaces and provides insights into optimal film forming conditions for high-performance supercapacitors and electrochemical transistors.

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