Nippon Steel & Sumikin Chemical Co., Ltd.

Takuo Nagahama

Hiroyuki Hayashida

Atsushi Kawada

Kouta Masutani

Provided are an organic semiconductor material having a high charge mobility, oxidation stability, and solvent solubility, an organic semiconductor device using the same, and a novel aromatic heterocyclic compound to be used for the same and a production method therefor. The aromatic heterocyclic compound is represented by the following general formula (1), has two heteroatoms, and has a structure in which six rings are fused. In the formula, X represents an oxygen atom or N&#x2014;R, and R represents hydrogen or a monovalent substituent. The organic semiconductor material contains the aromatic heterocyclic compound, and is used for an organic semiconductor film or an organic device, such as an organic thin-film transistor or an organic photovoltaic device.

Aromatic heterocyclic compound, manufacturing method thereof, organic semiconductor material, and organic semiconductor device

Provided are a semiconductor material for an organic transistor having a high charge mobility, solvent solubility, oxidation stability, and satisfactory film formability, and an organic thin-film transistor using the semiconductor material. The organic semiconductor material for an organic transistor is a seven-ring-fused heterocyclic compound having benzene rings at both ends, and having, therebetween, rings of a structure in which benzene rings A and pyrrole rings B are fused in the order of A-B-A-B-A. The fused heterocyclic compound may be substituted with an alkyl group, an alkenyl group, an alkynyl group, or an aromatic group. In addition, the organic thin-film transistor includes a semiconductor layer using the compound.

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Kitakyushu, Japan

Takuo Nagahama