Crosslinking p-dopants for p-doping organic hole conductors

US11258020B2 · kind B2 · utility

Assignees

• Osram OLED GMBH · DE
• Merck Patent GmbH · DE

Inventors

• Günter Schmid · Hemhofen, DE
• Florian Kessler · Höchstadt an der Aisch, DE
• Katja Stegmaier · Darmstadt, DE
• Fabrice Eckes · Darmstadt, DE
• Holger Heil · Frankfurt am Main, DE
• Beate Burkhart · Darmstadt, DE
• Henning Seim · Darmstadt, DE

Key dates

• Filing date: Jun 14, 2017
• Grant date: Feb 22, 2022
• Expiry date: Aug 5, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K50/805
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method produces cross-linked hole-conducting electric layers by converting functionalized p-dopants. The functionalized p-dopants are organic metal complexes containing at least one central atom and organic ligands, wherein the central atom is selected from a metal of the groups 6-15 of the periodic table, and at least one of the organic ligands is selected from the following formulas I-V, in which E independently of one another is oxygen, sulfur, selenium, or N(E1)x, and each Rv has at least one functionalizing group selected from the group RF including —OH, —COOH, —NH2, —NHR′, halogen, C2-C40-alkenyl, -dienyl, -alkinyl, -alkenyloxy, -dienyloxy, -alkinyloxy, acrylic acid, oxetan, oxiran, silane, acrylic acid, anhydride, and cyclobutane or consists of the groups, and G=C(RF)uHvFw where u+v+w=3 and n=1-4.