Production of organic phosphorescent layers with addition of heavy main group metal complexes

US10707422B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Florian Kessler · Höchstadt an der Aisch, DE
• Ana-Maria Krestel · Erlangen, DE
• Anna Maltenberger · Leutenbach, DE
• Guenter Schmid · Hemhofen, DE
• Dan Taroata · Erlangen, DE

Key dates

• Filing date: May 8, 2014
• Grant date: Jul 7, 2020
• Expiry date: Mar 24, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A method is provided for producing organic electrical layers having organic emitters that are phosphorescent at room temperature. Organic fluorescent emitters, together with organic complex ligands containing metal complexes, and at least one heavy main group metal, selected from the group comprising In, Tl, Sn, Pb, Sb and Bi, are deposited jointly inside a layer, and the heavy main group metal changes its coordination sphere by receiving the organic fluorescent emitter.