ORGANIC SEMICONDUCTOR MATERIAL, ORGANIC SEMICONDUCTOR STRUCTURE AND ORGANIC SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an organic semiconductor material capable of exhibiting liquid crystal phase over a wide temperature range including at least normal temperature and revealing high charge mobility, and to provide an organic semiconductor structure and an organic semiconductor device.

SOLUTION: The organic semiconductor material has a quarter thiophene skeletal structure represented by chemical formula 1. In the formula, R1 is an alkyl group of 1-20C or hydrogen, and R2 is an alkyl group of 1-20C or hydrogen. The inventive organic semiconductor structure comprises an organic semiconductor layer having a high order smectic liquid crystal phase in a temperature range of at least -40 to +90°C, and its organic semiconductor layer has charge mobility of 10-1cm2/V or above in at least normal temperature region.

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