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

Abstract: The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I). wherein R1 is 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; RA, RB, RC, RD and RE are any of substituents other than hydrogen wherein at least two of R1 and RA may 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 R1 is 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.

Abstract: A compound represented by Formula (I) or (II). wherein A is a single bond or a divalent residue of biphenyl, triphenyl, ?in each of which one or more hydrogen atoms attached in the carbon atoms may be replaced by a substituent other than hydrogen, wherein Z is any one selected from N, O, S, and SiR, Y is N—R, O, S, Si(R)2 where R is C1-20 alkyl or aryl, R1 and R2 are independently selected from hydrogen or C1-20 alkyl; X1 to X4 are independently selected from substituents other than spirobifluorenyl, A, B1 or B2 l, p and q are integers of from 0 to 4; m is an integer of from 0 to 3, wherein B1 and B2 are independently selected from hydrogen and a heterocyclic group; r is an integer of from 0 to 3; and X1 to X4, m, p, and q are as defined in Formula (I), with the proviso that B1 and B2 are not hydrogen simultaneously. The use of such compounds in OLEDs is also claimed.

Abstract: Organic semiconductor composition, comprising an organic semiconductor (OSC) material and a binder which is a spirobifluorene compound comprising 1 to 4 substituted or unsubstituted spirobifluorene moieties of formula 26.

Abstract: Multilayer structure suitable for forming part of an organic electronic device, said structure comprising at least two adjacent layers L1 and L2 wherein both layers L and L2 comprise at least 50 wt % of a spirobifluorene derivative or an open spirobifluorene derivative.

Abstract: 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(R1R2)—(C(R3R4))m; wherein, R1 and R2, independent of one another, each represent a C1-C8 alkyl group or an aryl group of from 5 to 30 carbon atoms, R3 and R4, independent of one another, are hydrogen, a C1 to C8 alkyl 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 R5 represents hydrogen, C1 to C8-alkyl, or C5 to C30 aryl, and R6 and R7, independently of one another represent C1 alkylene or a C5 to C30 arylene group, provided that R6 and R7 both carry an addition-polymerizable group X and R5 is not hydrogen if R6 is methylene.

Abstract: 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(R1R2)—(C(R3R4))m; wherein, R1 and R2, independent of one another, each represent a C1-C8 alkyl group or an aryl group of from 5 to 30 carbon atoms, R3 and R4, independent of one another, are hydrogen, a C1 to C8 alkyl 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 R5 represents hydrogen, C1 to C8-alkyl, or C5 to C30 aryl, and R6 and R7, independently of one another represent C1 alkylene or a C5 to C30 arylene group, provided that R6 and R7 both carry an addition-polymerizable group X and R5 is not hydrogen if R6 is methylene.

Abstract: The present invention relates to a novel triscarbazole compound comprising cyclo- or polycycloalkyl or aralkyl substituent, which can be represented by Formula (I). wherein; RA is a substituent comprising a substituted or unsubstituted cyclo- or polycycloalkyl group wherein the ring system comprises three to twenty carbon atoms or an aralkyl group having an overall number of nine to twenty carbon atoms, RB, RC, RD and RE are any substituent other than a substituted or unsubstituted aniline, and m, o, p and q are same or different at each occurrence and represent an integer from 0 to 4.

Abstract: Novel spirobifluorene compounds for light emitting devices where an SBF or Open SBF unit is substituted by a nitrogen atom, which is part of a ring system comprising two aromatic or heteroaromatic rings.

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

Abstract: Novel spirobifluorene compounds for light emitting devices where the spirobifluorene ring system comprises at least one ligand in meta-position which is bound to the spirobifluorene through a heteroatom not being part of a ring system.

Abstract: The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I). wherein R1 is 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; RA, RB, RC, RD and RE are any of substituents other than hydrogen wherein at least two of R1 and RA may 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 R1 is 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.

Abstract: A compound represented by Formula (I) or (II). wherein A is a single bond or a divalent residue of biphenyl, triphenyl, in each of which one or more hydrogen atoms attached in the carbon atoms may be replaced by a substituent other than hydrogen, wherein Z is any one selected from N, O, S, and SiR, Y is N—R, O, S, Si(R)2 where R is C1-20 alkyl or aryl, R1 and R2 are independently selected from hydrogen or C1-20 alkyl; X1 to X4 are independently selected from substituents other than spirobifluorenyl, A, B1 or B2 l, p and q are integers of from 0 to 4; m is an integer of from 0 to 3, wherein B1 and B2 are independently selected from hydrogen and a heterocyclic group; r is an integer of from 0 to 3; and X1 to X4, m, p, and q are as defined in Formula (I), with the proviso that B1 and B2 are not hydrogen simultaneously. The use of such compounds in OLEDs is also claimed.

Abstract: The present invention relates to a novel triscarbazole compound comprising cyclo- or polycycloalkyl or aralkyl substituent, which can be represented by Formula (I). wherein; RA is a substituent comprising a substituted or unsubstituted cyclo- or polycycloalkyl group wherein the ring system comprises three to twenty carbon atoms or an aralkyl group having an overall number of nine to twenty carbon atoms, RB, RC, RD and RE are any substituent other than a substituted or unsubstituted aniline, and m, o, p and q are same or different at each occurrence and represent an integer from 0 to 4.

Abstract: 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.

Abstract: 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.