Light-emitting element, light-emitting device, and vapor deposition apparatus
First Claim
1. A method for manufacturing a layer comprising an organic compound, comprising:
- forming a layer that comprises a compound over a surface, so that a maximum value and a minimum value of a concentration of the compound are alternatively repeated in a direction perpendicular to the surface, so that at least two maximum values of the concentration of the compound and at least two minimum values of the concentration of the compound exist,wherein the minimum value is more than 0 wt %,wherein the compound is an organic compound, andwherein the layer that comprises the compound is one of a layer that comprises a light-emissive substance, a charge generating layer that comprises a composite material, a layer that comprises an organic compound having an electron transporting property, and a layer that comprises an organic compound having a hole transporting property.
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Abstract
To provide a light-emitting element and a light-emitting device which can be designed and manufactured with redundancy. A light-emitting element of the invention includes a pair of electrode, and a layer containing a light-emissive substance between the pair of electrodes. The layer containing a light-emissive substance includes a layer containing a composite material, and the layer containing a composite material includes an organic compound and an inorganic compound. The concentration ratio of the organic compound to the inorganic compound changes periodically. The layer containing a composite maternal can be changed in electrical characteristics without changing the composition ratio of the organic compound to the inorganic compound in the layer or changing the kind of compounds used for the layer.
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Citations
30 Claims
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1. A method for manufacturing a layer comprising an organic compound, comprising:
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forming a layer that comprises a compound over a surface, so that a maximum value and a minimum value of a concentration of the compound are alternatively repeated in a direction perpendicular to the surface, so that at least two maximum values of the concentration of the compound and at least two minimum values of the concentration of the compound exist, wherein the minimum value is more than 0 wt %, wherein the compound is an organic compound, and wherein the layer that comprises the compound is one of a layer that comprises a light-emissive substance, a charge generating layer that comprises a composite material, a layer that comprises an organic compound having an electron transporting property, and a layer that comprises an organic compound having a hole transporting property. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for manufacturing a layer comprising an organic compound, comprising:
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forming a layer that comprises both a first compound and a second compound over a surface, so that a maximum value and a minimum value of a concentration ratio of the first compound and the second compound are alternatively repeated in a direction perpendicular to the surface, so that at least two maximum values of the concentration ratio of the first compound and the second compound and at least two minimum values of the concentration ratio of the first compound and the second compound exist, wherein the minimum value is more than 0 wt %, wherein the first compound is an organic compound, and wherein the layer that comprises the first compound is one of a layer that comprises a light-emissive substance, a charge generating layer that comprises a composite material, a layer that comprises an organic compound having an electron transporting property, and a layer that comprises an organic compound having a hole transporting property. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method for manufacturing a layer comprising an organic compound, comprising:
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forming a layer that comprises a compound over a surface, so that a first region having a first average atomic weight of the compound and a second region having a second average atomic weight of the compound lower than the first average atomic weight are alternatively repeated in a direction perpendicular to the surface, so that at least two of the first regions and at least two of the second regions exist, wherein the layer comprises the first region and the second region, wherein the second average atomic weight is more than 0 wt %, wherein the compound is an organic compound, and wherein the layer that comprises the compound is one of a layer that comprises a light-emissive substance, a charge generating layer that comprises a composite material, a layer that comprises an organic compound having an electron transporting property, and a layer that comprises an organic compound having a hole transporting property. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for manufacturing a layer comprising an organic compound, comprising:
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forming a layer that comprises a compound over a surface, so that a first region having a first concentration of the compound, a second region having a second concentration of the compound, a third region having a third concentration of the compound, a fourth region having a fourth concentration of the compound are arranged in a direction perpendicular to the surface in this order, wherein the layer comprises the first region, the second region, the third region, and the fourth region, wherein the second concentration is larger than the first concentration, wherein the third concentration is smaller than the second concentration, wherein the fourth concentration is larger than the third concentration, wherein each of the first concentration and the third concentration is more than 0 wt %, wherein the compound is an organic compound, and wherein the layer that comprises the compound is one of a layer that comprises a light-emissive substance, a charge generating layer that comprises a composite material, a layer that comprises an organic compound having an electron transporting property, and a layer that comprises an organic compound having a hole transporting property. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification