| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having a long element life.SOLUTION: The organic electroluminescent element includes: a pair of electrodes at least one of which is a transparent or translucent positive electrode or negative electrode; and one or a plurality of organic compound layers, sandwiched between the pair of electrodes, at least one layer of which contains one kind of porphyrin compound. |
