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Additive jet printing of polymer thin-film transistors


Organic thin-film transistors (TFTs) 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 print-patterned source-drain contacts. The printed transistors performed comparably to devices fabricated by spin casting the polymer. The regioregular poly(thiophene) exhibited a mobility of 0.1 cm2V-1s-1, on-off current ratios of ~10^6 and low threshold voltage.

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Paul, K. ; Wong, W. S. ; Ready, S. E. ; Street, R. A. Additive jet printing of polymer thin-film transistors. Applied Physics Letters. 2003 September 8; 83 (10): 2070-2072.


Copyright © American Institute of Physics, 2003. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at http://link.aip.org/link/doi/10.1063/1.1609233.