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Controlling the Organization of PEDOT:PSS on Cellulose Structures
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.
Tech Univ Denmark, Denmark.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-3203-7935
KTH Royal Inst Technol, Sweden; KTH Royal Inst Technol, Sweden.
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2019 (English)In: ACS APPLIED POLYMER MATERIALS, ISSN 2637-6105, Vol. 1, no 9, p. 2342-2351Article in journal (Refereed) Published
Abstract [en]

Composites of biopolymers and conducting polymers are emerging as promising candidates for a green technological future and are actively being explored in various applications, such as in energy storage, bioelectronics, and thermoelectrics. While the device characteristics of these composites have been actively investigated, there is limited knowledge concerning the fundamental intracomponent interactions and the modes of molecular structuring. Here, by use of cellulose and poly(3,4-ethylene-dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), it is shown that the chemical and structural makeup of the surfaces of the composite components are critical factors that determine the materials organization at relevant dimensions. AFM, TEM, and GIVVAXS measurements show that when mixed with cellulose nanofibrils, PEDOT:PSS organizes into continuous nanosized beadlike structures with an average diameter of 13 nm on the nanofibrils. In contrast, when PEDOT:PSS is blended with molecular cellulose, a phase-segregated conducting network morphology is reached, with a distinctly relatively lower electric conductivity. These results provide insight into the mechanisms of PEDOT:PSS crystallization and may have significant implications for the design of conducting biopolymer composites for a vast array of applications.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019. Vol. 1, no 9, p. 2342-2351
Keywords [en]
nanocomposites; biomaterials; PEDOT; nanotechnology; energy materials; cellulose
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-164436DOI: 10.1021/acsapm.9b00444ISI: 000486361400010OAI: oai:DiVA.org:liu-164436DiVA, id: diva2:1416658
Note

Funding Agencies|Energimyndigheten [P43561-1]; Stiftelsen far Strategisk Forskning

Available from: 2020-03-24 Created: 2020-03-24 Last updated: 2020-04-24Bibliographically approved

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The full text will be freely available from 2020-07-22 13:05
Available from 2020-07-22 13:05

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