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Light-emitting element, light-emitting device, and vapor deposition apparatus

  • US 8,125,144 B2
  • Filed: 04/10/2006
  • Issued: 02/28/2012
  • Est. Priority Date: 04/11/2005
  • Status: Expired due to Fees
First Claim
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1. A light-emitting element comprising a pair of electrodes, and a layer containing a light-emissive substance sandwiched therebetween,wherein the layer containing the light-emissive substance comprises a layer containing a composite material;

  • wherein the layer containing the composite material comprises an organic compound and an inorganic compound; and

    wherein a concentration ratio of the organic compound to the inorganic compound changes in a stacked direction so that a maximum value and a minimum value of the concentration ratio are alternately repeated, and a concentration of the organic compound is not less than 10 wt % and not more than 95 wt % throughout the layer containing the composite material.

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