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AssigneesBeijing Visionox Technology Co., Ltd., Tsinghua University
InventorsYong Qiu, Lian Duan, Mengzhen Li, Guohui Zhang, Song Liu
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Disclosed are an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device comprises an anode, a hole transport layer, an organic light-emitting layer, an electron transport layer and a cathode. An organic metal complex and an active metal compound are doped in the electron transport layer, wherein the active metal compound is an alkali metal complex, an alkali earth metal complex or a lanthanide metal compound. The preparation method thereof includes the following steps: etching an anode pattern, and evaporating a hole transport layer and an organic light-emitting layer on an ITO glass substrate in order; and co-evaporate an electron transport material, an organic metal complex and an active metal compound to form an electron transport layer; and evaporating a cathode on the electron transport layer.
An organic electroluminescent device, comprising an anode, a hole transport layer, an organic light-emitting layer, an electron transport layer and a cathode, characterized in that an organic metal complex and an active metal compound are doped in the electron transport layer, the electron transport layer comprises electron transport material, the organic metal complex and the active metal compound, wherein the active metal compound is an alkali metal compound, an alkaline earth metal compound or a lanthanide metal compound,
A method for preparing an organic electroluminescent device, including:
Dependencies are inferred from the claim text.