Dic Corporation

Dic Corporation (Tokyo)

Shou Inagaki

Hideki Etori

Hideyuki Murata

Masanori Kasai

Norimasa Fukazawa

Hiroshi Isozumi

Engel Michael

There is provided a conductive paste for screen printing. The conductive paste includes: metal nanoparticles (Y) having a surface coated with a polymer compound having a branched polyalkyleneimine chain and a polymer chain selected from the group consisting of a polyoxyalkylene chain, a polymer chain composed of a polyvinyl alcohol, a polymer chain composed of a water-soluble poly(meth)acrylic acid, a polyacylalkyleneimine chain, and a polymer chain composed of a polyacrylamide; an aliphatic monocarboxylic acid having 6 to 10 carbon atoms and/or succinic anhydride; and an organic solvent (B). A polyalkylene glycol is used as the organic solvent (B).

Conductive paste for screen printing

There is provided an organic semiconductor material with which it is possible to manufacture an electronic element by a wet process which is low cost. Furthermore, the object is to provide an organic semiconductor electronic element which is hardly broken, light in weight and inexpensive, and has high characteristic. According to the present invention, it has been found that it is possible to provide an organic semiconductor material in which performance is improved and which is suitable for a wet process by optimizing a phthalocyanine derivative which configures a phthalocyanine nano-sized substance and the completion of the present invention has been reached. Furthermore, it is possible to provide an electronic element which has high durability, is hardly broken, light in weight, inexpensive and has high characteristic by using the organic semiconductor material in an electronic element active part (a semiconductor layer).

Phthalocyanine nano-size structures, and electronic elements using said nano-size structures

There is provided a conductive paste for screen printing. The conductive paste includes: metal nanoparticles (Y) having an average particle diameter of 1 to 50 nm and protected with a polymer compound having a branched polyalkyleneimine chain and a polymer chain selected from the group consisting of a polyoxyalkylene chain, a polymer chain composed of a polyvinyl alcohol, a polymer chain composed of a water-soluble poly(meth)acrylic acid, a polyacylalkyleneimine chain having a hydrophilic substituent, and a polymer chain composed of a polyacrylamide; metal particles (Z) having an average particle diameter of 200 to 600 nm; a deprotecting agent (A) for the metal nanoparticles; and an organic solvent (B). An aliphatic monocarboxylic acid having 6 to 10 carbon atoms is used as the deprotecting agent (A) for the metal nanoparticles. A polyalkylene glycol is used as the organic solvent (B).

The present invention provides a phthalocyanine nanorod; an ink composition containing the phthalocyanine nanorod; a transistor containing the phthalocyanine nanorod; a material for a photoelectric conversion device, the material containing the phthalocyanine nanorod; and a photoelectric conversion device containing the phthalocyanine nanorod between the positive electrode and the negative electrode. Since an ink composition containing a nanorod according to the present invention can be formed into a film by a wet process such as a coating method or a printing method, an electronic device that is less likely to fail and is lightweight and inexpensive can be produced on a flexible plastic substrate.

Phthalocyanine nanorod and photoelectric conversion device

The present invention provides a photoelectric conversion device that is durable, lightweight, and inexpensive, and has a network structure of organic semiconductor nanowires that has high durability and is suitable for charge transport. In addition, to provide the photoelectric conversion device, the present invention provides, as an electron-donating material, a material for a photoelectric conversion device, the material including phthalocyanine nanowires having a breadth of 50 nm or less and a ratio (length/breadth) of a length to the breadth, the ratio being 10 or more. According to the present invention, a photoelectric conversion device having a long life due to high light resistance of phthalocyanine can be provided at a low cost. Use of such photoelectric conversion devices can constitute a solar-cell module having a long life due to the feature of the photoelectric conversion devices and being manufactured at a low cost.

Material for photoelectric conversion device and photoelectric conversion device

The present invention provides phthalocyanine nanowires having a minor diameter of 100 nm or less and a ratio (length/minor diameter) of length to minor diameter of 10 or more, an ink composition characterized by containing, as essential components, the phthalocyanine nanowires and an organic solvent, a film including the phthalocyanine nanowires, and an electronic element including a film. Since by using an ink composition containing the phthalocyanine nanowires of the present invention a phthalocyanine film can be formed by a wet process such as coating or printing, a break-proof, lightweight, low-cost electronic element can be provided on a flexible plastic substrate.

Growing community of inventors

Sakura, Japan

Shou Inagaki