Process for patterning conductive polyaniline films
First Claim
1. A method for fabricating a device, comprising the steps of:
- applying a solution which combines a mixture of polyaniline and an additive, dissolved in a solvent on a substrate, wherein the polyaniline has the structure ##STR1## wherein 0≦
x≦
1, wherein R is selected from the group consisting of an alkyl, and alkyl sulfonate, and an aryl, and wherein the additive dissociates and forms a polyaniline salt;
evaporating the solvent to form a polyaniline salt containing layer on the substrate, wherein the polyaniline salt containing layer has a conductivity greater than about 10-2 S/cm and wherein the polyaniline salt containing layer has a thickness less than about 10 microns; and
delineating at least one region in the polyaniline salt containing layer wherein the at least one region has a conductivity less than about 10-6 S/cm.
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Abstract
A method for making a device in which a conductive polyaniline layer (polyaniline salt layer) is formed on a substrate and patterned into a desired configuration, is disclosed. The polyaniline salt containing layer is formed by applying a polyaniline salt solution which combines a mixture of polyaniline and an additive, dissolved in a solvent on the substrate. Thereafter, the polyaniline salt containing layer is patterned by delineating in such layer at least one region having a conductivity less than about 10-6 S/cm. The at least one region in the polyaniline salt containing layer having a conductivity less than about 10-6 S/cm is optionally formed by combining a photobase generator (PBG) with the polyaniline salt solution. An adhesive is optionally mixed with the polyaniline salt solution for forming an polyaniline salt/adhesive polymer layer which is patterned into the desired configuration.
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Citations
10 Claims
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1. A method for fabricating a device, comprising the steps of:
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applying a solution which combines a mixture of polyaniline and an additive, dissolved in a solvent on a substrate, wherein the polyaniline has the structure ##STR1## wherein 0≦
x≦
1, wherein R is selected from the group consisting of an alkyl, and alkyl sulfonate, and an aryl, and wherein the additive dissociates and forms a polyaniline salt;evaporating the solvent to form a polyaniline salt containing layer on the substrate, wherein the polyaniline salt containing layer has a conductivity greater than about 10-2 S/cm and wherein the polyaniline salt containing layer has a thickness less than about 10 microns; and delineating at least one region in the polyaniline salt containing layer wherein the at least one region has a conductivity less than about 10-6 S/cm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification