Formulations comprising ammoniacal hydroxozinc compounds

Patent metadata

Field	Value
Publication number	US-9978591-B2
Application number	US-201314395339-A
Country	US
Kind code	B2
Filing date	Mar 26, 2013
Priority date	Apr 17, 2012
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

The invention relates to ammoniacal formulations comprising a) at least one hydroxozinc compound and b) at least one compound of an element of the 3 rd primary group, to the use thereof, to a method using said formulations to produce layers comprising ZnO and to electronic components produced using same.

First claim

The invention claimed is:

1. An ammoniacal formulation, comprising:
a) a hydroxozinc compound, and
b) at least two compounds of main group 3 elements
wherein the hydroxozinc compound is Zn(OH) x (NH 3 ) y (2-x)+ , where 1≤x≤2 and 1≤v ≤6,
wherein the at least two compounds of the main group 3 elements are a gallium compound and an indium compound, and
wherein the formulation comprises, based on a total amount of zinc and the main group 3 elements, from 65-75 mol % of the hydroxozinc compound, from 25-34 mol % of the gallium compound, and from 1-10 mol % of the indium compound.

2. The formulation according to claim 1 , which is obtained by a process comprising
a) dissolving nitrate salts of zinc and at least two main group 3 elements in a trivalent oxidation state in a solvent,
b) precipitating a hydroxide-containing solid with a hydroxide base,
c) removing the solvent, thereby obtaining a precipitate, and
d) taking up the precipitate in ammoniacal water.

3. A process for producing a ZnO-containing layer, the process comprising:
applying the formulation according to claim 1 to a substrate, and
then thermally converting the formulation, thereby obtaining the ZnO-containing layer.

4. A process for producing an electronic component, the process comprising:
employing the formulation according to claim 1 to produce the electronic component.

5. An electronic component, comprising a ZnO-containing layer produced by the process according to claim 3 .

6. The electronic component according to claim 5 , which is a transistor.

7. The electronic component according to claim 5 , which is an optoelectronic component.

8. The electronic component according to claim 5 , which is a sensor.

Assignees

• Steiger Juergen
• Pham Duy Vu
• Weber Dennis
• Botnaras Silviu
• Evonik Degussa Gmbh

Inventors

• Steiger Juergen
• Pham Duy Vu
• Weber Dennis
• Botnaras Silviu

Classifications

• H10P14/3426 Primary

  Oxides · CPC title

• H10P14/265

  using solutions · CPC title

• H10P14/3434 Primary

  being oxide semiconductor materials (Group IIB-VIA semiconductor materials H10P14/3424) · CPC title

• H01B1/22

  the conductive material comprising metals or alloys · CPC title

• H01B1/06

  mainly consisting of other non-metallic substances · CPC title