Solution-processed small molecule-polymer blend organic thin-film transistors with hole mobility greater than 5 cm2/Vs

Jeremy Smith; Weimin Zhang; Rachid Sougrat; Kui Zhao; Ruipeng Li; Dongkyu Cha; Aram Amassian; Martin Heeney; Iain McCulloch; Thomas D Anthopoulos

doi:10.1002/adma.201200088

Solution-processed small molecule-polymer blend organic thin-film transistors with hole mobility greater than 5 cm2/Vs

Adv Mater. 2012 May 8;24(18):2441-6. doi: 10.1002/adma.201200088. Epub 2012 Apr 10.

Authors

Jeremy Smith¹, Weimin Zhang, Rachid Sougrat, Kui Zhao, Ruipeng Li, Dongkyu Cha, Aram Amassian, Martin Heeney, Iain McCulloch, Thomas D Anthopoulos

Affiliation

¹ Centre for Plastic Electronics and Department of Physics, Blackett Laboratory, Imperial College London, UK.

PMID: 22488874
DOI: 10.1002/adma.201200088

Abstract

Using phase-separated organic semiconducting blends containing a small molecule, as the hole transporting material, and a conjugated amorphous polymer, as the binder material, we demonstrate solution-processed organic thin-film transistors with superior performance characteristics that include; hole mobility >5 cm(2) /Vs, current on/off ratio ≥10(6) and narrow transistor parameter spread. These exceptional characteristics are attributed to the electronic properties of the binder polymer and the advantageous nanomorphology of the blend film.

Publication types

Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Electrodes
Heterocyclic Compounds, 4 or More Rings / chemistry
Microscopy, Atomic Force
Polymers / chemistry*
Thiophenes / chemistry
Transistors, Electronic

Substances

Heterocyclic Compounds, 4 or More Rings
Polymers
Thiophenes
anthradithiophene