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US 7,351,357 B2Granted
Printing of organic conductive polymers containing additives
AssigneeE.I. du Pont de Nemours and Company
InventorsGraciela Beatriz Blanchet-Fincher, Feng Gao
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Abstract
Additives to organic conducting polymers are described which enhance adhesion and resolution of printed films while retaining adequate electrical conductivity. The conductive polymer films are useful in printing conductive portions of thin film transistors such as sources and drains. Additives include surfactants, second macromolecules, plasticizers, and excess sulfonic acids.
Claims10
A composition comprising:
- a) polyaniline doped with dinonylnaphthalene sulfonic acid
- dinonylnaphthalene sulfonic acid such that there are from 0.15 to 1 additional molecules of the excess dinonylnaphthalene sulfonic acid for each nitrogen in the polymer;
- and
- c) carbon nanotubes.
1 more element
Dependencies are inferred from the claim text.