| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having a long life. SOLUTION: For the organic electroluminescent element obtained by laminating a hole injection layer composed of organic compound laminated in contact with an anode, an luminous layer composed of organic compound, an electron carrier layer composed of organic compound, and a cathode, the luminous layer includes phosphorescent material and the hole injection layer includes porphyrin compound.
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