| abstract |
An organic electroluminescent device having a plurality of organic compound layers sandwiched between an anode and a cathode, comprising: a hole transport layer made of an organic compound insoluble in an alcohol solvent, and an electron transport layer formed by a wet method on the hole transport layer; The organic electroluminescent element whose phosphorus containing organic compound is soluble in an alcoholic solvent, its manufacturing method, phosphorus containing organic compound, and its manufacturing method are provided.n n n n Organic electroluminescent element, hole transport layer, electron transport layer, phosphorus containing, alcohol solvent |