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Method for preparing a multilayer structure for electroluminescent components

  • US 5,496,597 A
  • Filed: 07/20/1994
  • Issued: 03/05/1996
  • Est. Priority Date: 07/20/1993
  • Status: Expired due to Term
First Claim
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1. A method for preparing a planar multilayer structure, said method comprisingdepositing said multilayer structure comprising at least one phosphor layer and at least one dielectric layer onto a suitable substrate, said phosphor layer comprising at least one alkaline-earth metal sulfide and said dielectric layer comprising at least one metal oxide species, anddepositing at least one of the dielectric layers by means of surface reactions directly onto said alkaline-earth sulfide layer,whereinthe dielectric layer deposited onto said alkaline-earth sulfide layer is at least partially deposited from a precursor of vaporizable organometal complex containing at least one metal atom and at least one organic ligand bonded to said at least one metal atom via an oxygen atom, whereby an electroluminescent structure is achieved exhibiting a luminance better than 80% of an initial luminance value after 800 operating hours.

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