Organic electroluminescence element

Abstract

The organic electroluminescence device includes an anode, a cathode, a first electron injection layer, an electron transport layer, and a light emitting layer. The first electron injection layer is made of alkali metal and is formed between the anode and the cathode. The electron transport layer is formed between the first electron injection layer and the anode. The light emitting layer is formed between the electron transport layer and the anode. The organic electroluminescence element further includes a second electron injection layer. The second electron injection layer is formed between the first electron injection layer and the electron transport layer. The second electron injection layer is made of amorphous inorganic material.

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