Organic Schottky diodes

Patent metadata

Field	Value
Publication number	US-10283725-B2
Application number	US-201715837843-A
Country	US
Kind code	B2
Filing date	Dec 11, 2017
Priority date	Jun 3, 2014
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

An organic diode has a substrate, a first conductor layer on the substrate, an organic semiconductor layer on the first conductor layer, and a second conductor layer on the organic substrate layer, wherein one of the conductor layers has an injection enhancement.

First claim

What is claimed is:

1. A method of printing a diode, comprising:
printing a first conductor on a substrate from a first solution;
depositing an organic semiconductor layer onto the first conductor such that the organic semiconductor layer resides on, and is in contact with, the first conductor; and
printing a second conductor onto the organic semiconductor layer from a second solution, wherein at one least one of the first solution and the second solution has an injection enhancement material mixed into the solution.

2. The method of claim 1 , wherein printing the first conductor comprises printing one of silver, gold, copper, nickel, aluminum, indium-tin-oxide, conductive carbon materials, and silver nanowires.

3. The method of claim 1 , wherein forming the organic semiconductor layer comprises forming one of a pi conjugated polymer, poly(triarylamines), poly(phenylene vinylenes), poly(thiophenes), triarylamine containing polymers, ferrocene containing polymers, polysilanes, and triarylamine molecularly doped polymers.

4. The method of claim 1 , wherein the injection enhancement material is one of the group consisting of: tetracyanoquinodimethane, a derivative of tetracyanoquinodimethane, lithium fluoride, lithium carbonate, cesium fluoride, and cesium carbonate.

5. The method of claim 1 , wherein the first solution and the second solution are the same solution.

6. The method of claim 1 , wherein only one of the first solution and the second solution has the injection enhancement material.

7. The method of claim 1 , wherein both the first solution and the second solution have the injection enhancement material.

Assignees

• Palo Alto Res Ct Inc

Inventors

• Hsieh Bing R
• Ng Tse Nga
• Whiting Gregory

Classifications

• H01L51/0579 Primary

  Electricity · mapped topic

• H01L51/0003

  Electricity · mapped topic

• H10K10/23 Primary

  Schottky diodes · CPC title

• H10K71/12

  using liquid deposition, e.g. spin coating · CPC title