Organic electronic component with electron injection layer
A device is disclosed. In an embodiment the device includes an anode, an organic active layer above the anode, an organic layer sequence above the organic active layer, a metallic layer above the organic layer sequence and a cathode above the metallic layer, wherein the metallic layer includes Yb.
1 . An organic electronic component comprising
an anode;
an active layer arranged above the anode;
an electron injection layer arranged above the active layer, the electron injection layer comprising:
a first organic layer comprising a first organic matrix material;
a second organic layer comprising a second organic matrix material; and
a metallic layer comprising a metal,
wherein the second organic layer is doped with the metal and comprises a concentration gradient of the doping of the metal; and
a cathode arranged above the electron injection layer, wherein the cathode is arranged directly above the metallic layer.
2 . The organic electronic component according to claim 1 , wherein the metal of the metallic layer is selected from the group consisting of Li, Na, Ca, Mg, Yb, Cs, Sr, Rb, K, and combinations thereof.
3 . The organic electronic component according to claim 1 , wherein the metallic layer has a layer thickness of between and inclusive 1 nm and 10 nm.
4 . The organic electronic component according to claim 1 , wherein the cathode comprises a material selected from the group consisting of Ag, Pt, Au, Mg, Al, Ba, In, Ca, Sm, or Li, and compounds, combinations or alloys thereof.
5 . The organic electronic component according to claim 1 , wherein the second organic layer comprises a first partial layer and a second partial layer.
6 . The organic electronic component according to claim 5 , wherein the first partial layer is not doped with the metal of the metallic layer.
7 . The organic electronic component according to claim 1 , wherein the first organic matrix material has a higher electron conductivity than the second organic matrix material.
8 . The organic electronic component according to claim 1 , further comprising an encapsulation above the cathode.
9 . An organic electronic component comprising
an anode;
an active layer arranged above the anode;
an electron injection layer arranged above the active layer, the electron injection layer comprising:
a first organic layer comprising a first organic matrix material;
a second organic layer comprising a second organic matrix material; and
a metallic layer comprising a metal,
wherein the second organic layer is doped with the metal of the metallic layer at least in partial regions; and
a cathode arranged above the electron injection layer, wherein the cathode is arranged directly above the metallic layer.
10 . The organic electronic according to claim 9 , wherein the second organic layer comprises a first partial layer and a second partial layer.
11 . The organic electronic component according to claim 9 , further comprising a substrate comprising a material selected from the group consisting of glass, quartz, and plastic.
12 . The organic electronic component according to claim 9 , wherein a hole blocking layer arranged between the active layer and the electron injection layer, wherein the hole blocking layer includes an organic material, the organic material having a lower-lying HOMO than the first organic matrix material and/or the second organic matrix material.
13 . The organic electronic component according to claim 12 , wherein the hole blocking layer comprises TMM-147, TMM-127, TMM-0044, BAlq, BCP, TAZ, PBD, TPBI, Spiro-TAD or consist essentially of one of these materials.
14 . The organic electronic component according to claim 9 , wherein the first organic layer has a thickness between 5 nm inclusive and 60 nm inclusive.
15 . The organic electronic component according to claim 9 , wherein the second organic layer has a thickness between 2 nm inclusive and 20 nm inclusive.
16 . The organic electronic component according to claim 9 , wherein an electron injection into the active layer is almost constant at temperatures up to 150° C.
17 . Method for operating an organic electronic component,
wherein the organic electronic component comprises
an anode;
an active layer arranged above the anode;
an electron injection layer arranged above the active layer, the electron injection layer comprising:
a first organic layer comprising a first organic matrix material;
a second organic layer comprising a second organic matrix material; and
a metallic layer comprising a metal;
a cathode arranged above the electron injection layer;
wherein the metal penetrates partially into the second organic layer, wherein the cathode is arranged directly above the metallic layer.
18 . The method according to claim 17 , wherein the metal of the metallic layer cannot expand into the first organic layer.