Shinshu University

Hodogaya Chemical Co., Ltd.

Samsung Electronics Co., Ltd.

Dainichiseika Color & Chemicals Mfg. Co., Ltd.

Ube Industries, Inc.

Shinano Kenshi Co., Ltd.

Musubu Ichikawa

Yoshio Taniguchi

Norimasa Yokoyama

Shuichi Hayashi

Tetsuzo Miki

Makoto Nagaoka

Kyu Sik Kim

Naoaki Kabasawa

Naomi Oguma

Naoki Hirata

Hisao Kono

Kyung Bae Park

Kwang Hee Lee

Hiroyuki Nakamura

Shigeru Kusano

Seiji Ishikawa

Naohiro Tarumoto

Shunji Mochiduki

Toshiki Takeuchi

Yusuke Higashi

Shinichi Matsuki

Sohei Otsuru

Hyeon-Gu Jeon

According to example embodiments, a photoelectric conversion device includes a first electrode including a light-receiving surface, a second electrode spaced apart from the first electrode and facing the first electrode, and an auxiliary layer between the second electrode and an exciton producing layer. The first electrode may be on the second electrode. The exciton producing layer may be between the first electrode and the second electrode. The exciton producing layer may be spaced apart from the second electrode by a distance corresponding to one of a crest and a trough of a standing wave of light to be converted into electricity.

Photoelectric conversion device

The invention provides a light emitting layer host compound and an electron-blocking compound that have high excited triplet levels, and can completely confine the triplet excitons of phosphorescent material, for use as the material of a high-efficient organic electroluminescent device. The invention also provides a high-efficient, high-luminance organic electroluminescent device with the use of the compounds. The compound of the general formula (1) below has a triphenylsilyl group and a triarylamine structure, and the organic electroluminescent device includes a pair of electrodes and at least one organic layer interposed between the pair of electrodes, wherein the compound of the general formula (1) having a triphenylsilyl group and a triarylamine structure is used as constituent material of the at least one organic layer. 

Compound having triphenylsilyl group and triarylamine structure, and organic electroluminescent device

An information-reading element may be provided, which can be made small, and allows the number of adjustment steps to be reduced, and an information-reading device may be provided. An information-reading element may be provided and equipped with a light-emitting element, which serves as a polarized light-emitting part for emitting polarized light as outgoing light, and a light-receiving element, which serves as a polarized light-receiving part for receiving the polarized light as returning light after the polarized light is reflected off a reflecting plate, said reflecting plate being a target object from which information is to be read, wherein the light-emitting element and the light-receiving element have different polarization characteristics from each other.

Information-reading component and information-reading device utilizing same

The present invention relates to a compound having a bipyridyl group and a carbazole ring, which is represented by the following general formula (1); and an organic electroluminescent element containing a pair of electrodes and at least one organic layer interposed therebetween, in which the compound is used as a constituent material of the at least one organic layer: 

Compounds having bipyridyl group and carbazole ring, and organic electroluminescent element

Provided are a fine-particulate organic semiconductor material, a thin organic semiconductor film and an organic transistor. The fine-particulate organic semiconductor material is in a form of fine particles and is usable as an organic semiconductor material. The fine particles are fine thermotropic liquid crystal particles that undergo a phase transition into a liquid crystal state when heated to a temperature of from 50&#xb0; C. to 350&#xb0; C. The fine-particulate organic semiconductor material can easily and uniformly form the thin organic semiconductor film over a large area by a film printing process or a dispersion coating process. The thin organic semiconductor film has high electron mobility and high ON/OFF value.

Organic semiconductor particulate material, organic semiconductor thin-film, dispersion liquid for forming organic semiconductor film, method for producing organic semiconductor thin-film, and organic thin-film transistor

Provided are an organic semiconductor material, organic semiconductor thin film and organic thin-film transistor, which contain a perylene tetracarboxylic diimide derivative represented by the following formula (1): In the formula (1), Rmeans a linear or branched alkyl group having from 1 to 20 carbon atoms, Rmeans a linear or branched alkyl group having from 2 to 6 carbon atoms, Rmeans a linear or branched alkyl group having from 2 to 6 carbon atoms, Xand Xeach mean a heteroatom selected from an oxygen atom, sulfur atom or selenium atom, Y means a halogen atom or cyano group, m stands for a number of from 0 to 4, and n stands for a number of from 0 to 2. Further, the alkyl groups represented by Rand Rmay each be substituted with one or more fluorine atoms.

Organic semiconductor material, organic semiconductor thin film, and organic thin film transistor

A compound having a benzotriazole ring structure and a formula (1): wherein Ar is a substituted or unsubstituted aromatic hydrocarbon group, aromatic heterocyclic group, or condensed polycyclic aromatic group; A and B are the same as or different from each other and each represent a hydrogen atom or a monovalent group of formula (2), provided that A and B are not simultaneously hydrogen atoms: wherein Rto Rare the same as or different and each represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or condensed polycyclic aromatic group; m is an integer of 0, 1 or 2; X represents a carbon atom or a nitrogen atom; when X is a nitrogen atom, the nitrogen atom does not have substituents or bonding groups of R, R, Rand R; and when m is 2, a plurality of R, R, R, Rand X each are the same or different.

Compound having benzotriazole ring structure and organic electroluminescent element

The invention provides an organic compound which shows an excellent electron-injecting/transporting performance, has a hole-blocking ability and shows a high stability as a film, that is, having excellent characteristics as a material for organic electroluminescent device having high efficiency and high durability; and provides an organic EL device comprising the compound and having high efficiency and high durability. The organic compound being a substituted bipyridyl compound represented by the general formula (1); 

Substituted bipyridyl compound and organic electroluminescent device

A color unit is disclosed in which is included in an imaging device. The color unit includes; a first p-type electrode layer disposed on a light receiving side of the color unit, and including a light-absorptive organic material which selectively absorbs a wavelength other than a desired wavelength in a visible light band of the electromagnetic spectrum, a second p-type electrode layer disposed under the first p-type electrode layer and including a light-absorptive organic material which absorbs a desired wavelength and an n-type electrode layer disposed under the second p-type electrode layer and including an organic material, wherein photoelectric conversion is performed through a p-n junction between the second p-type electrode layer and the n-type electrode layer and light of the desired wavelength is converted into electrical current.

Color unit and imaging device having the same

An object of the invention is to provide an organic compound having excellent characteristics as a material for highly efficient and highly durable organic EL devices, and also to provide a highly efficient and highly durable organic EL device. This invention relates to a compound represented by the general formula (1) having an oxadiazole ring structure bonded with an aromatic heterocycle, and to an organic electroluminescence device containing the compound: wherein Ar represents a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group; A represents a substituted or unsubstituted aromatic heterocyclic group; and n represents an integer of 1 to 3.

Compound having oxadiazole ring structure bonded with aromatic heterocyclic ring and organic electroluminescent device

This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the arylamine compound of formula (1) is used as a constituting material of the at least one organic layer: wherein X represents a single bond, CH or CH, or N or NH; Arand Arare respectively the same and each represents a substituted or unsubstituted phenylene group; R, R, R, and Reach independently represents an aryl group, wherein the aryl group may be substituted by a diarylamine group in such a manner as to form a triphenylamine partial structure, and the aryl group at the terminal may be substituted, by repetition, by a diarylamino group in such a manner as to form a triphenylamine partial structure; m represents an integer of 0 to 2; and n represents 0 or 1.

Arylamine compound and organic electroluminescence device

The present invention relates to a compound having an oxadiazole ring structure having a substituted pyridyl group connected thereto, represented by the following general formula (1). According to the present invention, it becomes possible to provide an organic compound having excellent characteristic of high stability in a thin film state, and the emission efficiency and durability of conventional organic EL devices can be remarkably improved.

Compound having oxadiazole ring structure substituted with pyridyl group and organic electroluminescence device

Objects of the invention are to provide a compound of a single molecular species having excellent hole injection/transport property suitable for highly efficient and highly durable organic EL device and excellent amorphousness, and provide a highly efficient and highly durable organic EL device using the compound. This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by the following general formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the compound is used as a constituting material of the at least one organic layer: wherein X represents a single bond, CH or CH, or N or NH; Arand Arare respectively the same and each represents a substituted or unsubstituted phenylene group, biphenylene group, or terphenylene group; R, R, R, and Reach independently represents an aryl group, wherein the aryl group may be substituted by a diarylamine group in such a manner as to form a triphenylamine partial structure, and the aryl group at the terminal may be substituted, by repetition, by a diarylamino group in such a manner as to form a triphenylamine-like partial structure; m represents an integer of 0 to 2; and n represents 0 or 1.

The present invention provides an arylamine compound having a molecular weight of from 1500 to 6000 represented by the general formula (1): According to the present invention, there can be provided an arylamine compound having excellent hole injection and transporting characteristics and being capable of forming a stable thin film. By using the compound, emission efficiency and durability of conventional organic EL devices can remarkably be improved.

Growing community of inventors

Ueda, Japan

Musubu Ichikawa