ORGANIC ELECTROLUMINESCENT DEVICE

Abstract

An organic EL device includes a substrate; a layered structure including a first electrode, an organic layer, and a second electrode disposed on the substrate in this order; and laminated protective layers surrounding at least the layered structure. The protective layers are composed of silicon, nitrogen, hydrogen, and fluorine. The fluorine content in the outermost protective layer is in the range of 0.01 to 1.0 atomic percent.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic cross-sectional view of a layered structure of an organic EL device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a layered structure of an organic EL device according to another embodiment of the present invention.

Claims

1. An organic electroluminescent device comprising: a substrate;a layered structure including a first electrode, an organic layer, and a second electrode disposed on the substrate in this order, andlaminated protective layers disposed closer to a light extraction side than the second electrode;wherein the protective layers are composed of silicon, nitrogen, hydrogen, and fluorine, andeach protective layer contains 0.01 to 1 atomic percent of fluorine.

2. An organic electroluminescent device comprising: a substrate;a layered structure including a first electrode, an organic layer, and a second electrode disposed on the substrate in this order, andlaminated protective layers disposed closer to a light extraction side than the second electrode;wherein the protective layers includea first protective layer disposed on the substrate side, the first protective layer being composed of silicon, oxygen, hydrogen, and fluorine and being free of nitrogen, anda second protective layer disposed on the light extraction side, the second protective layer being composed of silicon, nitrogen, hydrogen, and fluorine,wherein the first protective layer contains 0.01 to 4 atomic percent of fluorine, andthe second protective layer contains 0.01 to 1 atomic percent of fluorine.

3. The organic electroluminescent device according to claim 1, wherein the fluorine content in the laminated protective layers decreases in a direction from the substrate side toward the light extraction side.

4. The organic electroluminescent device according to claim 2, wherein the fluorine content in the laminated protective layers decreases in a direction from the substrate side toward the light extraction side.