The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Sep. 13, 2007
Christian Schildknecht, Mannheim, DE;
Evelyn Fuchs, Mannheim, DE;
Nicolle Langer, Heppenheim, DE;
Klaus Kahle, Ludwigshafen, DE;
Christian Lennartz, Schifferstadt, DE;
Oliver Molt, Hirschberg, DE;
Gerhard Wagenblast, Wachenheim, DE;
Jens Rudolph, Worms, DE;
Christian Schildknecht, Mannheim, DE;
Evelyn Fuchs, Mannheim, DE;
Nicolle Langer, Heppenheim, DE;
Klaus Kahle, Ludwigshafen, DE;
Christian Lennartz, Schifferstadt, DE;
Oliver Molt, Hirschberg, DE;
Gerhard Wagenblast, Wachenheim, DE;
Jens Rudolph, Worms, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The present invention relates to an organic light-emitting diode which has a light-emitting layer C which comprises at least one hole-conducting material CA and at least one phosphorescence emitter CB, to mixtures comprising at least one carbene complex in combination with at least one hole-conducting material or in combination with at least one phosphorescence emitter, and to the use of mixtures comprising at least one hole-conducting material and at least one phosphorescence emitter as a light-emitting layer in OLEDs for prolonging the lifetime of the light-emitting layer. The inventive organic light-emitting diode may have, in at least one of the layers of the organic light emitting diode, preferably in the hole-blocking layer and/or the electron-blocking layer and/or the light-emitting layer C, in addition to the hole-conducting material CA and the emitter CB, at least one compound selected from disilylcarbazoles, disilyldibenzofurans, disilyldibenzothiophenes, disilyldibenzophospholes, disilyldibenzothiophene S-oxides and disilyldibenzothiophene S,S-dioxides.