Additive jet printing of polymer thin-film transistors
Abstract
Organic thin-film transistors were fabricated by direct patterning of solution-processable semiconductors consisting of either poly(9,9'-dioctyl-fluorene-co-bithiophene) or a regioregular poly(thiophene). Acoustic ink-jet printing was used to deposit the polymeric semiconductor onto patterned metal source-drain contacts. Printed and spin coated transistors performed identically. The regioregular poly(thiophene) exhibited a mobility of 0.1 cm2 V-1 s-1, on-off current ratios of ∼106 and low threshold voltage.
- Publication:
-
Applied Physics Letters
- Pub Date:
- September 2003
- DOI:
- Bibcode:
- 2003ApPhL..83.2070P
- Keywords:
-
- 85.30.Tv;
- Field effect devices