Dai Nippon Printing Co., Ltd.

Dic Corporation

Tokyo Institute of Technology

Dic Corporation (tokyo)

Hiroaki Iino

Junichi Hanna

Hiroki Maeda

Akira Oono

Takeo Kobori

Yukiko Takayashiki

Takayuki Usui

Jun-Ichi Hanna

Yoshinobu Sakurai

Atsuhisa Miyawaki

Junichiro Koike

Hiroshi Maki

Yasuyuki Watanabe

Yutaka Tachikawa

The purpose of the present invention is to provide an organic semiconductor material having liquid crystallinity and high electron mobility. The present invention is an organic semiconductor material having at least a charge-transporting molecular unit (A) having a structure of an aromatic fused ring system and a cyclic structural unit (B) bonded to the aforementioned unit via a single bond, wherein the unit (A) and/or the unit (B) has a side chain composed of a unit (C), and wherein the organic semiconductor material exhibits a liquid crystal phase that is different from an N-phase, an SmA-phase or an SmC-phase.

Organic semiconductor material

The present invention provides an organic thin film and an organic transistor having high performance stability and mobility. Specifically, there are provided an organic thin film including a compound containing a charge transporting molecular unit A having a structure of an aromatic fused ring system and a unit B serving as a side chain, the compound having a bilayer structure; an organic semiconductor device including the organic thin film; and an organic transistor including the organic thin film used as an organic semiconductor layer.

Organic thin film, and organic semiconductor device and organic transistor using same

An organic semiconductor device Including an organic semiconductor layer in a crystallized crystal state is disclosed. The organic semiconductor layer is formed from an organic semiconductor material including a liquid crystal molecule. The semiconductor material has properties capable of exhibiting a supercooled state during a phase transition process, in which a phase having no periodic regularity is capable of being transferred into a phase having periodic regularity at a location of a center of gravity in between the liquid crystal molecules. The phase having no periodic regularity at a location of a center of gravity In between the liquid crystal molecules is a nematic liquid crystal phase and the phase having periodic regularity at a location of a center of gravity in between the liquid crystal molecules is a crystal phase.

Organic semiconductor structure, manufacturing method of the same, and organic semiconductor device

There is provided a liquid crystalline material, suitable for use as an organic semiconductor material, in which, even when the charge transport distance is long, the charge transport capability is satisfactory, the charge mobility is high, and the dependence of the charge transport properties upon field strength is small. The organic semiconductor material having rodlike low-molecular weight liquid crystallinity comprises: a core structure comprising L 6 &#x3c0; electron rings, M 8 &#x3c0; electron rings, N 10 &#x3c0; electron rings, O 12 &#x3c0; electron rings, P 14 &#x3c0; electron rings, Q 16 &#x3c0; electron rings, R 18 &#x3c0; electron rings, S 20 &#x3c0; electron rings, T 22 &#x3c0; electron rings, U 24 &#x3c0; electron rings, and V 26 &#x3c0; electron rings, wherein L, M, N, O, P, Q, R, S, T, U, and V are each an integer of 0 (zero) to 6 and L+M+N+O+P+Q+R+S+T+U+V=1 to 6; and a terminal structure attached to at least one end of the core structure, the terminal structure being capable of developing liquid crystallinity.

The main object is to provide a manufacturing method of organic semiconductor, an organic semiconductor device structure manufactured by the manufacturing method and an organic semiconductor device, those having uniform and high carrier transport property over a relatively large area. To achieve the object, the present invention provides a manufacturing method of an organic semiconductor structure, wherein the organic semiconductor structure comprises, on a base material, an organic semiconductor layer formed from a liquid crystalline organic semiconductor material, and comprising processes of: forming an oil repellent region and a lipophilic region, which is surrounded by the oil repellent region, on the base material; coating an organic semiconductor layer forming solution, comprising the liquid crystalline organic semiconductor material and a solvent, on the lipophilic region; and crystallizing the liquid crystalline organic semiconductor material by evaporating the solvent in the organic semiconductor layer forming solution coated on the lipophilic region.

Growing community of inventors

Tokyo, Japan

Hiroaki Iino