Organic electronic device and method of manufacturing the same
View Patent ↗Provided is an organic electronic device exhibiting excellent conductivity and transparency of an electrode, and low driving voltage, together with en excellent storing property and excellent lifetime. Also disclosed is an organic electronic device possessing a transparent substrate and provided thereon, a first transparent electrode, a second electrode and an organic functional layer provided between the first transparent electrode and the second electrode, wherein the first transparent electrode and the second electrode are opposed to each other, and a transparent conductive layer containing a conductive polymer and an aqueous binder is provided between the first transparent electrode and the organic functional layer.
1. An organic electronic device comprising a transparent substrate and provided thereon, a first transparent electrode, a second electrode and an organic functional layer provided between the first transparent electrode and the second electrode,
wherein the first transparent electrode and the second electrode are opposed to each other, a transparent conductive layer is provided between the first transparent electrode and the organic functional layer, and the transparent conductive layer comprises 100 parts by weight of a conductive polymer and 100 to 900 parts by weight of an aqueous binder, and
wherein the aqueous binder comprises Polymer (A) containing at least one selected from the monomer units represented by the following (A 1 ), (A 2 ) and (A 3 ):
where X 2 , X 2 and X 3 each independently represent a hydrogen atom or a methyl group; R 1 , R 2 and R 3 each independently represent an alkylene group having 5 carbon atoms or less; and “l”, “m” and “n” each represent a component ratio of mol/%, satisfying 50≦l+m+n≦100.
2. The organic electronic device of claim 1 , wherein in the transparent conductive layer, at least a part of the conductive polymer or the aqueous binder is crosslinked.
3. The organic electronic device of claim 1 ,
wherein the conductive polymer comprises a conductive polymer containing a p conjugated conductive polymer component and a polyanionic component.
4. The organic electronic device of claim 3 ,
wherein the polyanionic component comprises a polysulfonic acid group.
5. The organic electronic device of claim 1 ,
wherein the transparent conductive layer has been subjected to wet washing.
6. The organic electronic device of claim 1 ,
wherein the organic functional layer adjacent to the transparent conductive layer comprises a hole injection layer.
7. The organic electronic device of claim 6 ,
wherein the hole injection layer comprises a polyanion containing fluorine (F).
8. A method of manufacturing the organic electronic device of claim 1 , comprising the step of:
conducting a heat treatment at a temperature of 100-250° C. for 5 minutes or more after coating and drying of the transparent conductive layer comprising the conductive polymer and the aqueous binder.
9. The organic electronic device of claim 1 ,
wherein the transparent conductive layer has a dry film thickness of not less than 200 nm and not more than 1000 nm.
10. The organic electronic device of claim 1 ,
wherein, in the transparent conductive layer, the aqueous binder is cross-linked to the conductive polymer.