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AssigneeU.S. Philips Corporation
InventorsKnut H. Chmii, Adam R. Brown, Dagobert M. De Leeuw, Edsko E. Havinga, Anita Pomp, Wolter Ten Hoeve, Hans Wijnberg
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The invention relates to a method of preparing thiophene-containing or furan-containing conjugated compounds such as polythiophene. The method uses a precursor compound having tetrahydrothiophene or tetrahydrofuran precursor units having arylthio or alkylthio substituents. The precursor units can be thermally converted into thiophene or furan units. Due to the presence of the precursor units the precursor compound is soluble and can, unlike the corresponding conjugated compound, be processed from solution.
A semiconductor device having a semiconducting layer comprising a polythiophene which is derived by thermal separation of thermally separable substituents from a soluble precursor compound having a precursor unit consisting of a tetrahydrothiophene or tetrahydrofuran unit having thermally separable substituents —SR1 and —SR2 groups, wherein R1 are R2 are independently selected from alkyl and aryl groups.
Dependencies are inferred from the claim text.