Method for fabricating organic light emitting diode with fluorine-ion-doped electrode
View Patent ↗An exemplary organic light emitting diode ( 20 ) includes a substrate ( 21 ), a first electrode ( 22 ) with a plurality of fluorinions therein, an organic emission stack ( 29 ), and a second electrode ( 28 ) sequentially stacked in that order. A related method for fabricating the organic emitting diode is also provided.
1. A method for fabricating an organic light emitting diode, the method comprising:
providing a substrate, and forming a first electrode on the substrate;
doping a plurality of fluorine ions into a surface of the first electrode;
forming an organic emission stack on the first electrode; and
forming a second electrode on the organic emission stack,
wherein the fluorine ions are doped into the first electrode after the first electrode is formed on the substrate.
2. The method for fabricating an organic light emitting diode of claim 1 , wherein the fluorine ions are doped into the surface of the first electrode by an ion diffusion method or an ion implantation method.
3. The method for fabricating an organic light emitting diode of claim 1 , wherein the forming of the organic emission stack comprises: forming a hole injection layer on the first electrode; forming a hole transporting layer on the hole injection layer; forming an emitting layer on the hole transporting layer, forming an electron transporting layer on the emitting layer; and forming an electron injection layer on the electron transporting layer.
4. The method for fabricating an organic light emitting diode of claim 3 , wherein the hole injection layer is made of copper phthalocyanine or 4,4′,4″-tris(N-(3-methylphenyl)-N-phenylamino)triphenylamine, and the hole transporting layer is made of N,N′-di(1-naphthyl)-N,N′-diphenyl-benzidine.
5. The method for fabricating an organic light emitting diode of claim 3 , wherein the emitting layer is formed by a method selected from the group consisting of a spin coating method, a vacuum vapor deposition method, and a laser-induced thermal imaging method.
6. The method for fabricating an organic light emitting diode of claim 3 , wherein the electron transporting layer is made of material selected from the group consisting of a polycyclic hydrocarbon-based derivative, a heterocyclic compound, an aluminum complex, a gallium complex, and any derivative thereof, and the electron injection layer is made of material selected from the group consisting of alkali metals and alkali compounds.
7. The method for fabricating an organic light emitting diode of claim 1 , wherein the first electrode is an anode, which is made of material selected from the group consisting of indium tin oxide, indium zinc oxide, and indium cerium oxide.
8. The method for fabricating an organic light emitting diode of claim 1 , wherein the second electrode is a cathode, which is made of material selected from the group consisting of aluminum, silver, yttrium, calcium, and magnesium/silver alloy.