Insulators and device geometry in polymer field effect transistors

Henrik G.O. Sandberg, Tomas G. Bäcklund, Ronald Österbacka, Maxim Shkunov, David Sparrowe, Iain McCulloch, Henrik Stubb

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In order to increase the stability and practicality of polymer field effect transistor (FET) devices, different manufacturing parameters are investigated, including choice of material, processing solvent, and device geometry. It is found that the performance of the devices is closely related to the choice of gate insulator material, the applied sample configuration and the order of layer deposition. Thermally cross-linked polymers are investigated as insulator materials. For a top gate configuration the key parameter is the choice of insulator material (and solvent) while for the bottom gate configuration, device performance is largely dependent on interfacial properties, which may be controlled for example by surface treatment. This study shows that care must be taken in designing and applying the gate insulator layer of a FET.

Original languageEnglish (US)
Pages (from-to)142-146
Number of pages5
JournalOrganic Electronics
Issue number3
StatePublished - Jun 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering


  • Field effect transistor
  • Insulator
  • Organic
  • Polyalkylthiophene
  • Polyhydroxystyrene
  • Polyvinylphenol


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