Silole-based polymers and semiconductor materials prepared...

Details Silole-based polymers and semiconductor materials prepared... Silole-based polymers and semiconductor materials prepared...

2007-05-11

2009-10-20

Gulakowski, Randy (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From sulfur-containing reactant

Reexamination Certificate

active

07605225

ABSTRACT:
The present teachings provide silole-based polymers that can be used as p-type semiconductors. More specifically, the present teachings provide polymers that include a repeating unit of Formula I:wherein R1, R2, R3, R4, R5, R6, Z, x, and x′ are as defined herein. The present teachings also provide methods of preparing these polymers, and relate to various compositions, composites, and devices that incorporate these polymers.

REFERENCES:
patent: 2003/0162053 (2003-08-01), Marks et al.
patent: 2003/0168656 (2003-09-01), Kobayashi et al.
patent: 2006/0186401 (2006-08-01), Marks et al.
patent: 2006/128352 (2006-12-01), None
Chen et al., Polymer Preprints, (1997), 38(1), 190, 199.
Chan et al., “Poly(2,7-dibenzosilole): a Blue Light Emitting Polymer,”J. Am. Chem. Soc., 127: 7662-7663 (2005).
Liu et al., “Efficient Green-light-emitting Diodes from Silole-containing Copolymers,”Chem. Mater., 15:3496-3500 (2003).
Ohshita et al., “Synthesis and properties of dithienosiloles,”J. Org. Chem., 553:487-491 (1998).
Ohshita et al., “Synthesis and Optical, Electrochemical, and Electron-transporting Properties of Silicon-bridged Bithiophenes,”Organometallics, 18:1453-1459 (1999).
Ohshita et al., “Synthesis of Novel Spiro-condensed Dithienosiloles and the Application to Organic FET,”Chem. Lett., 33(7):892-893 (2004).
Ohshita et al., “Synthesis of Polymers Composed of Alternating Diphenylenedithienosilole and Diethynylenesilylene Units and Their Applications to Hole Transport in Double-Layer EL Devices,”Macromolecules, 33:8890-8893 (2000).
Sirringhaus et al., “Mobility Enhancement in Conjugated Polymer Field-effect Transistors through Chain Alignment in a Liquid-crystalline Phase,”Appl. Phys. Lett., 77(3):406-408 (2000).
Tamao et al., “Silole Derivatives as Efficient Electron Transporting Materials,”J. Am. Chem. Soc., 118:11974-11975 (1996).
Tamao et al., “Silole-pyrrole Co-oligomers: Their Synthesis, Structure and UV-VIS Absorption Spectra,”Chem. Commun., 1873-1874 (1996).
Usta et al., “Dithienosilole- and Dibenzosilole-thiophene Copolymers as Semiconductors for Organic Thin-Film Transistors,”J. Am. Chem. Soc., 128: 9034-9035 (2006).
Wang et al., “Conjugated Fluorene and Silole Copolymers: Synthesis, Characterization, Electronic Transition, Light Emission, Photovoltaic Cell, and Field Effect Hole Mobility,”Macromolecules, 38: 2253-2260 (2005).
Wang et al., “Conjugated Silole and Carbazole Copolymers: Synthesis, Characterization, Single-Layer Light-Emitting Diode, and Field Effect Carrier Mobility,”Macromol. Chem. Phys., 206: 2190-2198 (2005).
Yamaguchi et al., “Silole-containing σ- and π- Conjugated Compounds,”J. Chem. Soc., Dalton Trans., 3693-3702 (1998).
Yamaguchi et al., “Theoretical Study of the Electronic Structure of 2,2′-Bisilole in Comparison with 1,1′-Bi-1,3-cyclopentadiene: σ*-π*Conjugation and a Low-lying LUMO as the Original of the Unusual Optical Properties of 3,3′,4,4′-Tetraphenyl-2,2′-bisilole,”Bull. Chem. Soc. Jpn., 69:2327-2334 (1996).

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