Journal of Nanoparticle Research

, 14:1213

Inkjet-printed silver nanoparticles on nano-engineered cellulose films for electrically conducting structures and organic transistors: concept and challenges

  • Gary Chinga-Carrasco
  • Daniel Tobjörk
  • Ronald Österbacka
Research Paper

DOI: 10.1007/s11051-012-1213-x

Cite this article as:
Chinga-Carrasco, G., Tobjörk, D. & Österbacka, R. J Nanopart Res (2012) 14: 1213. doi:10.1007/s11051-012-1213-x

Abstract

This study explores the suitability of microfibrillated cellulose (MFC) films as a substrate for printing electrically conductive structures and multilayer electronic structures such as organic field effect transistors. Various MFC qualities were tested, including mechanically produced MFC, 2,2,6,6-tetramethylpiperidinyl-1-oxyl pre-treated MFC and carboxymethylated-MFC. The films differed significantly with respect to the surface structure. In addition, the carboxymethylated-MFC films were surface modified with hexamethyldisilazane (HMDS) to reduce the water-wettability of the films, and thus, improve the print resolution of the inkjet-printed silver (Ag) nanoparticles. The Ag-particles (diameter < 50 nm) were printed on the HMDS-modified films, which were mainly composed of nanofibrils with diameters <20 nm. The effect of surface roughness and surface chemical characteristics on the ink spreading and print resolution of the Ag-structures was explored. It was demonstrated that organic transistors operating at low voltages can be fabricated on nano-engineered MFC films.

Keywords

NanoparticlesPolymersPorous materialsCelluloseFilmsBarriersCharacterizationSurface modificationOrganic transistors

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Gary Chinga-Carrasco
    • 1
  • Daniel Tobjörk
    • 2
  • Ronald Österbacka
    • 2
  1. 1.Paper and Fibre Research Institute (PFI)TrondheimNorway
  2. 2.Physics, Department of Natural Sciences and Center for Functional MaterialsÅbo Akademi UniversityTurkuFinland