Toray Industries, Inc.

Other

Daisuke Kitazawa

Tsuyoshi Tominaga

Shuhei Yamamoto

Jun Tsukamoto

Seiichiro Murase

Kazunori Sugimoto

Kazumasa Nagao

Akira Kohama

Yukari Jo

Satoru Shimomura

Nobuhiro Watanabe

Yoshio Himeshima

Takafumi Ogawa

Takeshi Ishigaki

Mariko Sano

Aki Makiyama

Aki Kosei-Center Toray Industries Inc Makiyama

A photovoltaic element has excellent durability owing to an electron extraction layer in which an inorganic compound and an electron-donating group are more firmly bonded to each other, and includes at least a cathode, an electron extraction layer, a photoelectric conversion layer and an anode in this order, the electron extraction layer containing an inorganic compound (A), and an organic compound (B) having an electron-donating group and a bonding group, the electron extraction layer having an inorganic/organic hybrid structure in which the inorganic compound (A) and at least a part of the organic compound (B) are bonded to each other via the bonding group.

Photovoltaic element

A photovoltaic element has high photoelectric conversion efficiency as well as excellent processing properties/low environmental load. The organic semiconductor composition includes as an additive a compound in which one or two aromatic rings are substituted with a predetermined number of alkyl groups, alkoxy groups, alkanoyl groups, or thioalkyl groups. There is also a method of manufacturing a photovoltaic element which uses the composition.

Organic semiconductor composition, photovoltaic element, photoelectric conversion device, and method of manufacturing photovoltaic element

The objective of the present invention is to provide a photovoltaic device which has high photoelectric conversion efficiency and an electron-donating organic material which comprises a conjugate polymer having a structure of a thieno[3,4-b']thiophene skeleton with an alkoxycarbonyl group in which a specific alkyl group part is a straight chain alkyl group or an alkanoyl group in which the alkyl group part is a straight chain alkyl group and a benzo[1,2-b:4, 5-b&#x2032;]dithiophene skeleton with a heteroaryl group.

Conjugated polymer, and electron donating organic material, material for photovoltaic device and photovoltaic device using the conjugated polymer

An electron donating organic material includes a benzothiadiazole compound including (a) a benzothiadiazole skeleton and (b) an oligothiophene skeleton, and having a band gap (Eg) of 1.8 eV or less, and a level of highest occupied molecular orbital (HOMO) of &#x2212;4.8 eV or less, wherein said benzothiadiazole compound is formed by covalently combining the benzothiadiazole skeleton and the oligothiophene skeleton alternately, a proportion between the benzothiadiazole skeleton and the oligothiophene skeleton is within a range of 1:1 to 1:2 (however, excluding 1:1), and the number of thiophene rings contained in an oligothiophene skeleton is 3 or more and 12 or less.

Electron donating material, material for photovoltaic devices and photovoltaic device

A carbon nanotube composite in which a conjugated polymer containing repeating units containing a fused heteroaryl unit having a nitrogen-containing double bond in the ring, and a thiophene unit is attached to at least a part of the surface of a carbon nanotube. The present invention reduces the hysteresis of a field-effect transistor having a semiconductor layer containing a carbon nanotube.

Carbon nanotube composite, organic semiconductor composite, and field-effect transistor

A photovoltaic device has a high photoelectric conversion efficiency with a material for a photovoltaic device including an electron donating organic material having a structure represented by Formula (1): 

Material for photovoltaic device, and photovoltaic device

A photovoltaic device with high photoelectric conversion efficiency includes an electron donating organic material for photovoltaic devices containing a conjugated polymer represented by formula (1): wherein Rto Rmay be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an alkoxy group and an aryl group; Rand Rmay be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group and halogen; W, X, Y and Z may be the same or different from each other and are each selected from the group consisting of a single bond, an arylene group, a heteroarylene group, an ethenylene group, and an ethynylene group; m is 0 or 1; n is within a range of 1 to 1000.

Electron donating organic material for photovoltaic devices, material for photovoltaic devices, and photovoltaic device

The invention provides a light emitting device having a low driving voltage and excellent durability by a material for a light emitting device expressed by the general formula (1): wherein each of R, R, R, R, Rand Rmay be the same or different and is selected from hydrogen, an alkyl group, and an aryl group, A represents an n-valent aromatic hydrocarbon group, B represents an alkyl group or an aryl group, X represents carbon or nitrogen, n represents a natural number from 2 to 6, and n substituents having a phenanthroline skeleton or a benzoquinoline skeleton may be the same or different.

Material for lighting emitting device and light emitting device

The present invention is a light emitting device material characterized by containing an anthracene compound represented by the following general formula (1), and the present invention allows a light emitting device having high luminous efficiency and excellent durability.  (Rto Rare a hydrogen atom, alkyl group, cycloalkyl group, heterocyclic group or the like. At least one of the Rto Ris a substituent represented by the following general formula (2)) 

Light-emitting device material and light-emitting device

The present invention is a light-emitting device material characterized by containing a pyrene compound represented by the following general formula (1):   wherein R15 is a specific functional group; andY1 to Y4 is selected from among a nitrogen atom and a carbon atom, provided that at least one of the Y1 to Y4 is a nitrogen atom and at least one thereof is a carbon atom, and no substituents exist on the nitrogen atom in the case of the nitrogen atom. This material provides a light-emitting device having high luminous efficiency and excellent durability.

Material for light-emitting element and light emitting element

A light emitting device includes an emissive substance between an anode and cathode that emits light upon application of electrical energy. The emissive substance included in the device is at least one of the following types of compounds: (a) a compound having a plurality of 1,7-phenanthroline skeletal structures; (b) a benzoquinoline derivative; (c) a spiro compound; and (d) a tetraphenylmethane derivative.

Luminescent element material and luminescent element comprising the same

The present invention relates to an electroluminescent element formed by placing a luminescing substance between an anode and a cathode, such that when electrical energy is applied to the element, light is emitted having a peak wavelength of at least 580 nm. The luminescing substance comprises a fluorescent compound have a fluorescent maximum at about 540 nm or above and a compound having a pyrromethene structure (I) or metal complexes thereof.

Growing community of inventors

Otsu, Japan

Daisuke Kitazawa