Other

Kaneka Corporation

Japan Science and Technology Agency

Osaka University

New Japan Chemical Co., Ltd.

Shozo Yanagida

Yuji Wada

Yasuchika Hasegawa

Kenji Yamamoto

Izumi Osawa

Yoshihisa Tawada

Masaaki Ikeda

Koichiro Shigaki

Teruhisa Inoue

Takamasa Ueda

Ryotaro Tsuji

Masaaki Yokoyama

Yasushi Morita

Takashi Okubo

Tatsuhiko Yamanaka

Miwa Saito

An organic semiconductor device according to the present invention includes a semiconductor layerinterposed between two electrodesand, and the semiconductor layercontains a trioxotriangulene (TOT) derivative, which is a neutral radical compound, as a semiconductor material. The semiconductor layeracts as an n-type semiconductor and coacts with a p-type semiconductor layerto exhibit a photoelectric conversion effect. The organic semiconductor device is characterized as including a semiconductor layer that has a narrow band gap, has light absorption performance in an infrared region, and is high in carrier mobility.

Organic semiconductor material with neutral radical compound of a trioxotriangulene derivative as a semiconductor material

A crystalline rare-earth oxide or sulfide which has an average particle diameter of 10 nm or less and in which the rare-earth element has a low valance, in particular, crystalline EuO or EuS of nano size. The rare-earth oxide or sulfide is produced by irradiating an inorganic acid salt or organic acid salt of a rare-earth element having a high valence with a light in the range of from UV to visible light in the presence of: a compound which, upon irradiation with the light in the range of from UV to visible light induces a photooxidation-reduction reaction and simultaneously converts the rare-earth ions having a high valence into ions having a low valence; and a cholagen source compound which immediately reacts with the low valence ions to form a cholagen compound.

Rare-earth oxide or sulfide of nano size and process for producing the same through photochemical reaction

Dye-sensitized photoelectric conversion device

Method for producing ultra microparticles and ultra microparticles

The present invention provides an optically functional material comprising a rare-earth complex represented by the formula (I)

Rare earth complexes

In the present invention, a pigment is irradiated with a microwave so as to improve a surface thereof. Further, letting A be an area of a portion having hydrophilic groups on a surface of the pigment and B be an area of the other portion thereon, which are respectively found by measuring infrared spectrometers of the pigment, a ratio (A/B) is not less than 4. Water base ink according to the present invention is obtained by dispersing such a pigment in an aqueous medium.

Pigment and process for producing the same, water base ink and process for producing the same

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Kawanishi, Japan

Shozo Yanagida