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Multilayer polymer electroluminescent device comprising water-soluble polymer layer containing cations and method for fabricating the same

  • US 8,350,254 B2
  • Filed: 02/12/2008
  • Issued: 01/08/2013
  • Est. Priority Date: 07/12/2007
  • Status: Expired due to Fees
First Claim
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1. A polymer electroluminescent device comprising an anode, a light-emitting layer, a cation-containing water-soluble polymer layer and a cathode formed in this order on a substrate wherein the cation-containing water-soluble polymer layer is formed by wet coating, wherein the cation-containing water-soluble polymer layer has a thickness of 1 to 10 nm.

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