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Electroconductive paper: a study of polymer deposition and conductivity influenced by sheet forming and fibre beating
Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.ORCID iD: 0000-0002-1256-1708
Scion, New Zealand.
2010 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 25, no 4, 473-480 p.Article in journal (Refereed) Published
Place, publisher, year, edition, pages
2010. Vol. 25, no 4, 473-480 p.
National Category
Chemical Engineering
Research subject
Chemical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-7439DOI: 10.3183/NPPRJ-2010-25-04-p473-480OAI: oai:DiVA.org:kau-7439DiVA: diva2:418499
Available from: 2011-05-23 Created: 2011-05-23 Last updated: 2015-10-19Bibliographically approved
In thesis
1. Modification of Paper into Conductive Substrate for Electronic Functions: Deposition, Characterization and Demonstration
Open this publication in new window or tab >>Modification of Paper into Conductive Substrate for Electronic Functions: Deposition, Characterization and Demonstration
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The thesis investigates the modification of paper into an ion- and electron-conductive material, and as a renewable material for electronic device. The study stretches from investigating the interaction between the cellulosic materials and the conducting polymer to demonstrating the performance of the conductive paper by printing the electronic structure on the surface of the conductive paper. Conducting materials such as conducting polymer, ionic liquids, and multi-wall carbon nanotubes were deposited into the fiber networks.

In order to investigate the interaction between the conducting polymer and cellulosic material, the adsorption of the conducting polymer poly(3,4-ethylenedioxythiophene): poly(4-styrene sulfonate) (PEDOT:PSS) onto microcrystalline cellulose (MCC) was performed. Electroconductive papers were produced via dip coating and rod coating, and characterized. The Scanning Electron Microscopy (SEM) / Energy Dispersive Spectroscopy (EDS) images showed that the conducting polymer was deposited in the fiber and in fiber-fiber contact areas. The X-ray Photoelectron Spectroscopy (XPS) analysis of dip-coated paper samples showed PEDOT enrichment on the surface. The effects of fiber beating and paper formation, addition of organic solvents and pigments (TiO2, MWCNT), and calendering were investigated. Ionic paper was produced by depositing an ionic liquid into the commercial base paper. The dependence to temperature and relative humidity of the ionic conductivity was also investigated. In order to reduce the roughness and improve its printability, the ionic paper was surface-sized using different coating rods.  The bulk resistance increased with increasing surface sizing. The electrochemical performance of the ionic paper was confirmed by printing PEDOT:PSS on the surface. There was change in color of the polymer when a voltage was applied. It was demonstrated that the ionic paper is a good ionic conductor that can be used as component for a more compact electronic device construction.

Conductive paper has a great potential to be a flexible substrate on which an electronic structure can be constructed. The conduction process in the modified paper is due to the density of charge carriers (ions and electrons), and their short range mobility in the material. The charge carrying is believed to be heterogeneous, involving many charged species as the paper material is chemically heterogeneous.

Place, publisher, year, edition, pages
Karlstad: Karlstad University, 2011. 81 p.
Series
Karlstad University Studies, ISSN 1403-8099 ; 2011:28
Keyword
Ionic paper, electroconductive paper, flexible electronics, conducting polymer, ionic liquids, fiber network
National Category
Paper, Pulp and Fiber Technology
Research subject
Chemical Engineering
Identifiers
urn:nbn:se:kau:diva-7352 (URN)978-91-7063-361-4 (ISBN)
Public defence
2011-06-17, Nyquistsalen, 9C203, Karlstad University, Karlstad, 10:00 (English)
Opponent
Supervisors
Projects
Printed Polymer Electronics on Paper
Note

Fel ordningsnummer (2010:28) är angivet på omslaget av fulltextfilen.

Available from: 2011-05-26 Created: 2011-05-03 Last updated: 2017-08-11Bibliographically approved

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