Materials for N-type doping of the electron transporting layers in organic electronic devices
View Patent ↗The invention pertains to new materials based on donor carbene intermediates for the improvement of electron injection and electron transport in organic electronic components like organic light-emitting diodes (OLED's), organic field effect transistors (OFET's), and components based on organic photovoltaics, in particular organic solar cells.
1. A material for the n-doping of the electron-transporting layer in organic electronic components, comprising at least one compound of structures 1 to 3:
wherein:
X − is an anion,
Y is S or N—Ar,
R is alkyl, and,
Ar 1 , Ar 2 , and Ar 3 are each, independently, aryl moieties.
2. The material of claim 1 , wherein X − is chloride or formiate.
3. The material of claim 1 , wherein the Ar in N—Ar is phenyl or 1-naphthyl.
4. The material of claim 1 , wherein R is methyl.
5. The material of claim 1 , wherein Ar 1 , Ar 2 , and Ar 3 are each independently selected from the group consisting of phenyl, 1-naphthyl and 2-naphthyl.
6. A material for the n-doping of the electron-transporting layer in organic electronic components, the material comprising at least one compound of structures 1a to 3a:
wherein:
Y is S or N—Ar;
R is alkyl; and,
Ar 1 , Ar 2 , and Ar 3 are each, independently, aryl moieties.
7. The material of claim 6 , wherein the Ar in N—Ar is phenyl or 1-naphthyl.
8. The material of claim 6 , wherein R is methyl.
9. The material of claim 6 , wherein Ar 1 , Ar 2 , and Ar 3 are each independently selected from the group consisting of phenyl, 1-naphthyl and 2-naphthyl.
10. An organic electronic component comprising at least two electrodes and an active layer, wherein located between at least one electrode and the active layer is an electron-transporting layer doped with a material of any one of claims 1 , 2 , or 3 - 9 .
11. A process for manufacturing one of the materials of claims 6 to 9 , wherein a compound of one of structures 1 to 3 is converted in high-vacuum to a corresponding compound of one of structures 1a to 3a:
wherein:
X − is an anion;
Y is S or N—Ar;
R is alkyl; and,
Ar 1 , Ar 2 , and Ar 3 are each, independently, aryl moieties.
12. The process of claim 11 , wherein the Ar in N—Ar is phenyl or 1-naphthyl.
13. The process of claim 11 , wherein X − is chloride or formiate.
14. The process of claim 11 , wherein R is methyl.
15. The process of claim 11 , wherein Ar 1 , Ar 2 , and Ar 3 are each independently selected from the group consisting of phenyl, 1-naphthyl and 2-naphthyl.