Compositions are provided comprising aqueous dispersions of polythiophenes and colloid-forming polymeric acids. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays in combination with metal nanowires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.

Water dispersible polythiophenes made with polymeric acid colloids

There are provided electrically conducting polymer compositions comprising an electrically conductive polymer or copolymer and an organic solvent wettable fluorinated acid polymer. Electrically conductive polymer materials are derived from thiophene, pyrrole, aniline and polycyclic heteroaromatic precursor monomers. Non-conductive polymers derived from alkenyl, alkynyl, arylene, and heteroarylene precursor monomers. The organic-solvent wettable fluorinated acid polymer is fluorinated or highly fluorinated and may be colloid-forming. Acidic groups include carboxylic acid groups, sulfonic acid groups, sulfonimide groups, phosphoric acid groups, phosphonic acid groups, and combinations thereof. The compositions can be used in organic electronic devices.

Electrically conductive polymer compositions

A display device includes a lattice-shaped light-shielding pattern disposed on a transparent insulating substrate, and a color filter disposed on transparent insulating substrate, wherein the color filter overlaps with an edge portion of the light-shielding pattern. Moreover, a portion of the color filter that overlaps with the edge portion of the light-shielding pattern is rounded, and a portion of the color filter that does not overlap with the edge portion of the light-shielding pattern is planar.

Display device and method of manufacturing the same

In one aspect, the invention provides photovoltaic cells that utilize a mesh electrode on at least one exposure side of the photovoltaic cell. Preferably, the mesh electrode is a metallic mesh. In one embodiment, the invention provides dye-sensitized solar cells (DSSC) having a wire mesh exposure side electrode and a photovoltaic material comprising a photosensitized interconnected nanoparticle layer. In one embodiment, the wire mesh electrode functions as the cathode of the DSSC. In another embodiment, the wire mesh electrode functions as the anode of the DSSC. In addition, embodiments are provided where wire mesh electrodes are used for the anode and the cathode of a DSSC.

Photovoltaic cells utilizing mesh electrodes

Compositions are provided comprising aqueous dispersions of polyaniline and colloid-forming polymeric acids. Films from invention compositions are useful as buffer layers, in organic electronic devices including electroluminescent devices, such as organic light emitting diodes (OLED) displays. Films cast from invention compositions are also useful in combination with metal metalwires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.

Water dispersible polyanilines made with polymeric acid colloids for electronics applications

A method of making an electroconductive pattern on a support is disclosed. The support is provided with a polymer layer containing a polythiophene, a polyanion and a di- or polyhydroxy organic compound. Said layer is characterised by an initial surface resistivity (SRi) having a value which is higher than 104 Ω/□, or more preferably higher than 106 Ω/□. By heating selected areas of the polymer layer, the surface resistivity of these areas is reduced to SRi/Δ wherein Δ is at least 10, preferably at least 103 and more preferable at least 105. The electroconductive pattern thus obtained can be used as an electronic circuit for making an electric or semiconductor device such as a printed circuit board, an integrated circuit, a display, an electroluminescent device or a photovoltaic cell.

Method of making an electroconductive pattern on a support

The invention relates to a process for preparing water-soluble π-conjugated polymers by polymerizing, in aqueous solution using an oxidant, monomeric thiophene derivatives of formula (I) whereinX and Y are identical or different and are O, S, or N—R′,Z is —(CH2)m—CR2R3—(CH2)n—,R1 is aryl, C1-C18-alkyl, or hydrogen,R2 is hydrogen or —CH2)s—O—(CH2)p—SO3−M+,R3 is —(CH2)s—O—(CH2)p—SO3−M+,M+ is a cation,m and n are identical or different and are an integer from 0 to 3,s is an integer from 0 to 10, andp is an integer from 1 to 1.

Process for the preparation of water-soluble &pgr -conjugated polymers

A material is disclosed which comprises a substrate and an organic electroconductive layer provided on said substrate, characterised in that the substrate is a laminate comprising a glass layer and a support. The glass layer is preferably a flexible glass layer having a thickness from 10 to 500 μm. The material can be used as an electrode in electric or semiconductor devices thereby providing an improved lifetime, e.g. displays, photovoltaic cells or light-emitting diodes.

Electroconductive glass laminate

A process for preparing a substantially transparent conductive layer configuration on a support, the layer configuration comprising in any order at least a first layer containing an intrinsically conductive polymer optionally containing structural units represented by formula (I): (I)wherein n is larger than 1 and each of R1 and R2 independently represents hydrogen or an optionally substituted C1-4 alkyl group or together represent an optionally substituted C1-4 alkylene group or an optionally substituted cycloalkylene group, preferably an ethylene group, an optionally alkyl-substituted methylene group, an optionally C1-12 alkyl- or phenyl-substituted ethylene group, a 1,3-propylene group or a 1,2-cyclohexylene group; and a second layer consisting of a non-continuous layer of conductive silver, the process comprising the step of: preparing the second layer by a photographic process; and light emitting diodes, photovoltaic devices, transistors and electroluminescent devices comprising a layer configuration prepared according to this process.

Process for preparing a substantially transparent conductive layer configuration

A method for producing electrode pattern in a conductive polymer on a substrate comprising the steps of applying a layer containing between 10 and 5000 mg/m2 of a conductive polymer, so as to prepare a conductive layer and printing an electrode pattern on said layer using a printing solution containing of an oxidant selected from the group consisting of ClO−, BrO−, MnO4 −, Cr2O7 −−, S2O8 −− and H2O2.

Method for patterning a layer of conductive polymers

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