| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element having favorable luminous efficiency and light extraction efficiency, and a lighting system including the organic electroluminescent element.SOLUTION: An organic electroluminescent element 1 includes: a transparent electrode 20; a metal electrode 50 that is a counter electrode of the transparent electrode 20; and a plurality of light emitting units 30A, 30B each of which includes a luminous layer 33 containing an organic luminescent material, and which are stacked in series between the transparent electrode 20 and the metal electrode 50 with an intermediate connector layer 40 sandwiched therebetween. The light emitting unit 30B in the plurality of lighting units 30A, 30B, which is arranged nearest to the metal electrode 50, contains an organic luminescent material having the shortest wavelength of emission light in the plurality of lighting units 30A, 30B. A lighting system includes the organic electroluminescent element 1.SELECTED DRAWING: Figure 1 |
