The organic electroluminescence device and a manufacturing method thereof

To provide a recombined number of electrons and an organic electroluminescence device and a manufacturing method thereof enhanced current efficiency for holes number of emission carrier balance by optimizing the organic light-emitting layer. SOLUTION: The organic EL device 1 having an element structure in which an organic light-emitting layer 14 is disposed between the anode 11 and the cathode 18, the organic light emitting layer 14, the energy value of the LUMO (lowest unoccupied molecular orbital) of the same or energy value of approximately same as HOMO energy values ​​are identical or substantially the same LUMO (lowest unoccupied molecular orbital) of the at least two host materials or HOMO energy values ​​are different (highest occupied molecular orbital) of the (highest occupied molecular orbital) is different and at least two host materials, and configured to include a dopant is a luminescent compound, solves the aforementioned problems by adjusting the balance of the mobility of electrons and holes. .FIELD 1