Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2006-02-17
2011-10-18
Wu, Shean (Department: 1722)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C252S299600
Reexamination Certificate
active
08039832
ABSTRACT:
An liquid crystalline organic semiconductor material practical as an organic semiconductor is provided. The material is a liquid crystal composition having a smectic liquid crystal phase. The liquid crystalline organic semiconductor material has a distyrylbenzene structure of formula (1). When heated to a temperature range for the smectic liquid crystal phase followed by being cooled, the material takes on a solid state as a result of phase transition from the smectic phase.Wherein R1and R2, which may be the same or different, each represent an alkyl group, an alkoxy group or a group of general formula (2):Wherein R3represents a hydrogen atom or a methyl group; and B represents —(CH2)m—, —(CH2)m—O—, —CO—O—(CH2)m, —CO—O—(CH2)m—O—, —C6H4—CH2—O— or —CO—.
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Nippon Chemical Industrial Co. Ltd.
Westerman Hattori Daniels & Adrian LLP
Wu Shean
Yamanashi University
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