# US 2017/0256715 A1 · Optoelectronic Device

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- Number: US 2017/0256715 A1
- Document ID: US20170256715A1
- Status: Published application
- Kind: A1
- Application number: 15/507,221
- Filed: 2015-08-12
- Published: 2017-09-07
- Earliest claimed: 2014-08-26
- Assignees: OSRAM OLED GmbH
- Applicants: OSRAM OLED GmbH
- Inventors: Thomas Wehlus; Daniel Riedel; Nina Riegel; Silke Scharner; Johannes Rosenberger; Arne Fleissner
- Web page: https://patentgrep.com/patent/US20170256715A1

## CPC

- H10K 71/611: {using printing deposition, e.g. ink jet printing}
- H10K 30/83: comprising arrangements for extracting the current from the cell, e.g. metal finger grid systems to reduce the serial resistance of transparent electrodes
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/814: combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An optoelectronic device is disclosed. In an embodiment the optoelectronic device includes a light-transmissive first electrode, an electrically conductive track including a metal, and a functional organic region having at least one active region, wherein the electrically conductive track is arranged between the first electrode and the functional organic region and wherein the electrically conductive track is in direct contact with the first electrode and the functional organic region.

## Claims

### Claim at position 1

1-13. (canceled)

### Claim 14

An optoelectronic device comprising:
a light transmissive first electrode;
an electrically conductive track comprising a metal; and
a functional organic region comprising at least one active region,
wherein the electrically conductive track is arranged between the first electrode and the functional organic region, and
wherein the electrically conductive track is in direct contact with the first electrode and the functional organic region.

### Claim 15 (depends on 14)

The optoelectronic device according to claim 14, wherein the electrically conductive track is formed by a metallic ink that comprises a dopant for the functional organic region, and wherein the dopant is configured to deactivate another opposite-type dopant present in an adjacent functional organic region such that in a boundary region between the electrically conductive track and the functional organic region at least one area is formed that is free from charge carriers or reduced in charge carriers.

### Claim 16 (depends on 14)

The optoelectronic device according to claim 14, wherein the electrically conductive track is a printed structure.

### Claim 17 (depends on 14)

The optoelectronic device according to claim 14, wherein the functional organic region directly adjoins the first electrode and, during operation, a current density between the functional organic region and the first electrode is greater than a current density between the electrically conductive track and the functional organic region.

### Claim 18 (depends on 14)

The optoelectronic device according to claim 14, wherein a charge carrier injection from the electrically conductive track into the functional organic region is inhibited or prevented.

### Claim 19 (depends on 14)

The optoelectronic device according to claim 14, wherein a work function for charge carriers from the electrically conductive track is lower than a work function from the first electrode when the first electrode is an anode, or wherein the work function for charge carriers from the electrically conductive track is greater than the work function from the first electrode when the first electrode is a cathode.

### Claim 20 (depends on 14)

The optoelectronic device according to claim 14, wherein the electrically conductive track comprises a dopant for the functional organic region, and wherein the dopant is configured to deactivate another opposite-type dopant present in an adjacent functional organic region.

### Claim 21 (depends on 14)

The optoelectronic device according to claim 14, wherein the electrically conductive track and the functional organic region form a p-n junction, which is in antiparallel connection with the active region of the organic functional region.

### Claim 22 (depends on 14)

The optoelectronic device according to claim 14, wherein the first electrode is a layer having a main extension plane, wherein an area of the main extension plane is at least 90% of an area of a cross-sectional area of the functional organic region, and wherein the cross-sectional area is arranged parallel to the main extension plane.

### Claim 23 (depends on 14)

The optoelectronic device according to claim 14, wherein the first electrode comprises a transparent conductive oxide.

### Claim 24 (depends on 14)

The optoelectronic device according to claim 14, further comprising a plurality of electrically conductive tracks.

### Claim 25 (depends on 14)

The optoelectronic device according to claim 14, further comprising a second electrode arranged on a side of the functional organic region facing away from the first electrode.

### Claim 26 (depends on 25)

The optoelectronic device according to claim 25, wherein the second electrode is light-transmissive and an additional electrically conductive track is arranged between the second electrode and the functional organic region, and wherein the additional electrically conductive track is in direct contact with the second electrode and the functional organic region.

### Claim 27

An optoelectronic device comprising:
a light transmissive first electrode;
an electrically conductive track comprising a metal; and
a functional organic region comprising at least one active region,
wherein the electrically conductive track is arranged between the first electrode and the functional organic region,
wherein the electrically conductive track is in direct contact with the first electrode and the functional organic region,
wherein the electrically conductive track comprises a dopant for the functional organic region, and
wherein the dopant is configured to deactivate another opposite-type dopant present in an adjacent functional organic region.

### Claim 28

A method for producing an optoelectronic device, the method comprising:
applying a light transmissive first electrode to a carrier;
printing an electrically conductive track, which comprises a metal, on a side of the first electrode which faces away from the carrier; and
applying a functional organic region, which comprises at least one active region, on a side of the first electrode and the electrically conductive track which faces away from the carrier,
wherein the electrically conductive track is in direct contact with the first electrode and the functional organic region, and
wherein the electrically conductive track is formed by a metallic ink.

### Claim 29 (depends on 28)

The method according to claim 28, wherein the metallic ink comprises a dopant for the functional organic region, and wherein the dopant is configured to deactivate another opposite-type dopant present in an adjacent functional organic region such that in a boundary region between the electrically conductive track and the functional organic region at least one area that is free from charge carriers or reduced in charge carriers is formed.
