Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2005-12-21
2008-09-16
Smith, Zandra (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257S642000, C257S532000
Reexamination Certificate
active
07425723
ABSTRACT:
An organic thin-film transistor has a p-type semiconducting layer, wherein the semiconducting layer comprises a crystalline conjugated polyarylamine of the chemical structure:wherein R1through R5are independently selected from hydrogen, alkyl having from about 1 to about 30 carbon atoms, aryl having from about 6 to about 40 carbon atoms, heteroaryl having from about 3 to about 40 atoms, alkoxy having from about 1 to about 30 carbon atoms, aryloxy having from about 6 to about 40 carbon atoms, and substituted derivatives thereof; wherein A and B are the same or different independently selected from arylenes having from about 6 to about 20 carbon atoms or heteroarylenes having from about 3 to about 20 carbon atoms; and wherein n is the degree of polymerization; andwherein the polyarylamine has a mobility (μ0) of 10−4cm2/V·sec or greater.
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Li Yuning
Liu Ping
Ong Beng S.
Wu Yiliang
Fay Sharpe LLP
Green Telly D
Palazzo Eugene O.
Smith Zandra
Xerox Corporation
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