申请人:National Institute of Advanced Industrial Science and Technology
公开号:US07915609B2
公开(公告)日:2011-03-29
According to the present invention, a liquid crystal semiconductor capable of exhibiting a highly ordered smectic phase at approximately room temperature, being used for formation of a smectic liquid crystal thin film that is stable at room temperature by a solution process, and showing excellent ambipolar charge-transporting properties, a thin film transistor comprising the same, and the like are provided.
Also, the following are provided: a smectic liquid crystal compound represented by the following general formula (1)
wherein R1 represents a straight-chain alkyl group having 1 to 8 carbon atoms, R2 represents an alkyl or alkoxy group having 1 to 8 carbon atoms, and “n” is an integer of 0 to 3; an ambipolar charge-transporting material comprising the smectic liquid crystal compound; an organic semiconductor thin film having a thin film layer comprising the smectic liquid crystal compound; and a thin film transistor comprising the organic semiconductor thin film.
根据本发明,提供了一种液晶半导体,能够在近似室温下表现出高度有序的液晶相,通过溶液过程用于形成在室温下稳定的液晶相薄膜,并展现出优异的双极电荷传输特性,以及包括该液晶半导体的薄膜晶体管等。此外,还提供以下物质:由下列通式(1)表示的液晶相化合物,其中R1表示1至8个碳原子的直链烷基,R2表示1至8个碳原子的烷基或烷氧基,“n”是0至3的整数;包含该液晶相化合物的双极电荷传输材料;具有包含该液晶相化合物的薄膜层的有机半导体薄膜;以及包括该有机半导体薄膜的薄膜晶体管。