Solvay Sa

Sumitomo Chemical Company, Limited

Nissan Chemical Industries Limited

Nissan Chemical Corporation

Solvay

Jonathan Maunoury

Dominique Bascour

Enrico Orselli

Wieslaw Adam Mazur

Victor Dmitrievich Sorokin

Roland Martin

Veronique Mathieu

Jean-Raphael Caille

Véronique Mathieu

Jean Raphael Caille

Praveen Bachawala

Alexandre Ferrand

François Dabeux

Doinique Bascour

Novel spirobifluorene compounds for light emitting devices where the spirobifluorene ring system comprises at least one acridine-type substituent.

Spirobifluorene compounds for light emitting devices

The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I). wherein Ris selected from the group consisting of hydrogen, halogen or alkyl or alkoxy group having 1 to 20 carbon atoms wherein at least one hydrogen atom is optionally replaced by halogen; R, R, R, Rand Rare any of substituents other than hydrogen wherein at least two of Rand Rmay further form a fused ring; and i, j, k, l and m are same or different at each occurrence and represent an integer from 0 to 4, with the proviso that when Ris hydrogen, i is not 0. By introduction of the substituent on N-phenyl, the device efficiency, stability and lifetime can be increased while maintaining the solubility. These compounds can be used in various organic devices such as organic light emitting diodes, photovoltaic cells or organic semiconductor devices. 

N-phenyl triscarbazole

A compound represented by Formula (I) or (II).    The use of such compounds in OLEDs is also claimed.

Spirobifluorene compound for light emitting devices

Arylamine compounds comprising an arylamine core and at least one addition-polymerizable group X selected from the group consisting of formula (A); said addition polymerizable group attached to one ring of the arylamine core through a spacer of general formula (1): C(RR)&#x2014;(C(RR)); wherein, Rand R, independent of one another, each represent a C-Calkyl group or an aryl group of from 5 to 30 carbon atoms, Rand R, independent of one another, are hydrogen, a Cto Calkyl group or an aryl group of from 5 to 30 carbon atoms and m is an integer of from 0 to 6, or through a fluorene subunit of general formulae (2) or (3); wherein Rrepresents hydrogen, Cto C-alkyl, or Cto Caryl, and Rand R, independently of one another represent Calkylene or a Cto Carylene group, provided that Rand Rboth carry an addition-polymerizable group X and Ris not hydrogen if Ris methylene. 

Crosslinkable arylamine compounds

The present invention relates to a novel triscarbazole compound comprising cyclo- or polycycloalkyl or aralkyl substituent, which can be represented by Formula (I). wherein;

N-cycloalkylalkyl triscarbazoles

The present invention relates to a host material comprising a compound having two carbazole moieties which is suitable for blue-emitting OLEDs. Surprisingly, it has been found that when appropriate substituents are present in the carbazole structure, the solubility of the compounds can be improved without any adverse effect on the OLED performance. The present invention further relates to the use of the host materials and to an organic light emitting device comprising the host material.

Host material for light-emitting diodes

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Brussels, Belgium

Jonathan Maunoury