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Semiconductive copolymers for use in luminescent devices

  • US 5,672,678 A
  • Filed: 09/18/1995
  • Issued: 09/30/1997
  • Est. Priority Date: 08/24/1990
  • Status: Expired due to Term
First Claim
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1. An optical device which comprises a substrate, and at least one semiconductive conjugated copolymer layer supported by the substrate, wherein the copolymer comprises at least two chemically different monomer units each having different semiconductor bandgaps in their individual homopolymer forms, and wherein the proportion in the copolymer of said at least two chemically different monomer units forms the copolymer with a semiconductor bandgap that is spatially modulated from the semiconductor bandgap of each homopolymer form so that the optical properties of the copolymer are modulated, said copolymer being stable at operational temperatures within the range of about 0°

  • C. to 150°

    C.

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