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Effective Jet Printing of Organic Semiconducting Polymers

Published online by Cambridge University Press:  15 February 2011

Kateri E. Paul ,
William S. Wong  and
Steven E. Ready
Kateri E. Paul
Affiliation:
Palo Alto Research Center (PARC) 3333 Coyote Hill Road Palo Alto, CA 94304
William S. Wong
Affiliation:
Palo Alto Research Center (PARC) 3333 Coyote Hill Road Palo Alto, CA 94304
Steven E. Ready
Affiliation:
Palo Alto Research Center (PARC) 3333 Coyote Hill Road Palo Alto, CA 94304
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Abstract

Organic semiconducting polymers are an attractive alternative to conventional inorganic materials because of the ability to process the polymers from solution and apply them to flexible substrates using lower temperatures and at a lower cost. Direct writing of these materials has the potential to reduce processing steps and material waste. While printing of semiconductors for organic light emitting diodes (OLEDs) is well known, little has been reported on printing semiconductors for organic thin-film transistors (OTFTs). We have developed a process to fabricate TFTs and arrays using jet printing to eliminate all photolithographic patterning. Active layers of the polymeric semiconductor are jet-printed for the active layer. Many factors are found to affect the characteristics of devices having a jet-printed semiconductor layer, including the substrate temperature, surface energy, device geometry, and drop size and overlap. We will discuss the printing conditions that lead to performance similar to that of devices fabricated by spin coating.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 769: Symposium H – Flexible Electronics - Materials and Device Technology , 2003 , H5.4
Copyright
Copyright © Materials Research Society 2003

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