摘要:
An organic electroluminescent element comprising a cathode, an anode, an intermediate unit arranged between a cathode and an anode, a first light emitting unit arranged between a cathode and an intermediate unit, and a second light emitting unit arranged between an anode and an intermediate unit, wherein an electron extracting layer for extracting an electron from an adjacent layer adjoining a cathode side is provided in an intermediate unit, an absolute value of an energy level of a lowest unoccupied molecular orbital (LUMO) of an electron extracting layer |LUMO(A)|, and an absolute value of an energy level of a highest occupied molecular orbital (HOMO) of the adjacent layer |HOMO(B)| are in the relationship of |HOMO(B)|−|LUMO(A)|≦1.5 eV, and an intermediate unit supplies a hole generated by extraction of an electron from an adjacent layer by an electron extracting layer and, at the same time, supplies the extracted electron to a second light emitting unit.
摘要:
A stacked structure includes: first and second electrode parts, and a dielectric layer. The first electrode part has a first strip portion and a plurality of first plate portions extending from a side edge of the first strip portion. The second electrode part has a second strip portion and a plurality of second plate portions extending from a side edge of the second strip portion. The first and second electrode parts are arranged such that the first and second plate portions are stacked. The first plate portions face the second plate portions and the second strip portion. The second plate portions face the first plate portions and the first strip portion. The dielectric layer is placed between the first plate portions and adjacent ones of the second plate portions, between the first plate portions and the second strip portion, and between the second plate portions and the first strip portion.