Organic thin film transistors from a soluble oligothiophene derivative containing thermally removable solubilizing groups.

  title={Organic thin film transistors from a soluble oligothiophene derivative containing thermally removable solubilizing groups.},
  author={Amanda R. Murphy and Jean M. J. Fr{\'e}chet and Paul C. Chang and Josephine B. Lee and Vivek Subramanian},
  journal={Journal of the American Chemical Society},
  volume={126 6},
A symmetrical alpha,omega-substituted sexithiophene derivative containing thermally removable branched ester solubilizing groups has been prepared. These oligomers can be solution cast into thin films and then thermolyzed to remove the solubilizing group, leaving short pendant alkene groups on the oligomer. Device testing of thin film transistors shows an increase in hole mobility from 1 x 10-5 cm2/(V s) with on/off ratios of approximately 100 before thermolysis to 5 x 10-2 cm2/(V s) with on… 

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