Organic optoelectronic component and method for producing an organic optoelectronic component

Patent metadata

Field	Value
Publication number	US-9882158-B2
Application number	US-201515116227-A
Country	US
Kind code	B2
Filing date	Feb 18, 2015
Priority date	Feb 24, 2014
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

In various embodiments, an organic optoelectronic component is provided. The organic optoelectronic component may include a first electrode, an organic functional layer structure over the first electrode, and a second electrode over the organic functional layer structure. Optionally, the organic functional layer structure includes a charge carrier pair generation layer structure. At least one of the electrodes and/or the charge carrier pair generation layer structure includes electrically conductive nanostructures, the surfaces of which are at least partially coated with a coating material.

First claim

The invention claimed is:

1. An organic optoelectronic component, comprising:
a first electrode,
an organic functional layer structure having a charge carrier pair generation layer structure, over the first electrode,
a second electrode over the organic functional layer structure,
wherein the charge carrier pair generation layer structure comprises a first sublayer having first nanostructures which are coated with a first coating material, and a second sublayer having second nanostructures which are coated with a second coating material, wherein the second sublayer is formed over the first sublayer, and wherein one of the two sublayers is a hole injection layer and the other of the two sublayers is an electron injection layer.

2. The organic optoelectronic component as claimed in claim 1 , wherein the first and/or second nanostructures respectively comprise nanowires, nanotubes, nanoparticles and/or nanodots.

3. The organic optoelectronic component as claimed in claim 1 , wherein the first coating material is configured to functionalize a surface of the first nano structures.

4. The organic optoelectronic component as claimed in claim 1 , wherein the first coating material comprises organic compounds having one or more functional groups.

5. The organic optoelectronic component as claimed in claim 1 , wherein a surface of the first nanostructures is functionalized by means of thiolalkyl.

6. The organic optoelectronic component as claimed in claim 1 , wherein the first coating material comprises at least one functional group which is selected from aromatic, heteroaromatic, electron-withdrawing, electron donating, polar, nonpolar or fluorinated groups.

7. The organic optoelectronic component as claimed in claim 1 , wherein the second coating material is configured to functionalize a surface of the second nanostructures.

8. The organic optoelectronic component as claimed in claim 1 , wherein the second coating material comprises organic compounds having one or more functional groups.

9. The organic optoelectronic component as claimed in claim 1 , wherein a surface of the second nanostructures is functionalized by means of thiolalkyl.

10. The organic optoelectronic component as claimed in claim 1 , wherein the second coating material comprises at least one functional group which is selected from aromatic, heteroaromatic, electron-withdrawing, electron donating, polar, nonpolar or fluorinated groups.

11. A method for producing an organic optoelectronic component, the method comprising:
forming a first electrode,
forming an organic functional layer structure having a charge carrier pair generation layer structure, over the first electrode, and
forming a second electrode over the organic functional layer structure,
wherein the charge carrier pair generation layer structure comprises a first sublayer having first nanostructures which are coated with a first coating material, and a second sublayer having second nanostructures, which are coated with a second coating material, and wherein one of the two sublayers is a hole injection layer and the other of the two sublayers is an electron injection layer.

12. The method as claimed in claim 11 , wherein forming the organic functional layer structure comprises dissolving the first or second coating material in a first liquid and then applying the dissolved first or second coating material respectively onto the the first and second nanostructures.

13. The method as claimed in claim 11 , wherein forming the organic functional layer structure comprises dissolving the first or second nanostructures in a second liquid during the application of the respective coating material of the first and second coating materials.

14. The method as claimed in claim 11 , wherein forming the organic functional layer structure comprises dissolving the first and/or second coated nanostructures in a liquid during the formation of the electrode or of the charge carrier pair generation layer structure.

Assignees

• Osram Oled Gmbh

Inventors

• Wehlus Thomas
• Lang Erwin
• Baisl Richard
• Riedel Daniel
• Jaeger Arndt
• Rausch Andreas
• Scharner Silke

Classifications

• H01L2251/5369

  Electricity · mapped topic

• H01L51/5259

  Electricity · mapped topic

• H01L51/5092

  Electricity · mapped topic

• H01L51/5056

  Electricity · mapped topic

• H01L51/0003

  Electricity · mapped topic