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Patterning of Highly Conductive Conjugated Polymers for Actuator Fabrication
Linköping University, Department of Physics, Chemistry and Biology, Biosensors and Bioelectronics.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Trilayer polypyrrole microactuators that can operate in air have previously been developed. They consist of two outer layers ofthe electroactive polymer polypyrrole (PPy) and one inner layer of a porous poly(vinylidene flouride) (PVDF) membranecontaining a liquid electrolyte. The two outer layers of PPy are each connected with gold electrodes and separated by the porousPVDF membrane. This microtool is fabricated by bottom-up microfabrication However, porous PVDF layer is not compatible with bottom upmicrofabrication and highly swollen SPE suffers from gold electrode delamination. Hence, in this MSc project/thesis a novelmethod of flexible electrode fabrication with conducting polymers was developed by soft lithography and drop-on-demandprinting. The gold electrodes were replaced by patterned vapor phase polymerized (VPP) poly(3,4-ethylenedioxythiophene) (PEDOT)electrodes due to its high electrical conductivity and versatile process ability. The replacement of the stiff gold electrodes byflexible and stretchable PEDOT allowed high volume change of the material and motions. The PEDOT electrodes werefabricated by patterning the oxidant iron tosylate using microcontact printing and drop-on-demand printing. Moreover, thePVDF membrane has been replaced by a nitrile butadiene rubber/poly(ethylene oxide) semi-interpenetrating polymer network(IPN) to increase ion conductivity and strechability and hence actuator performance.

Place, publisher, year, edition, pages
2015. , 43 p.
Keyword [en]
Biosensors, Bioelectronics, Microactuators, Conjugated polymers, Polypyrrole, PEDOT, Soft Lithography, Microcontact printing, Vapor phase polymerization, Drop-on-Demand printing, Photolithography, Lift-off
National Category
Textile, Rubber and Polymeric Materials Other Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:liu:diva-130465ISRN: LITH-IFM-A-EX—15/3117—SEOAI: diva2:951401
Subject / course
Available from: 2016-10-10 Created: 2016-08-08 Last updated: 2016-10-10Bibliographically approved

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Biosensors and Bioelectronics
Textile, Rubber and Polymeric MaterialsOther Electrical Engineering, Electronic Engineering, Information Engineering

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