PHOSPHORESCENT LIGHT-EMITTING COMPLEX AND USE IN LIGHT-EMITTING DEVICE

A phosphorescent compound of formula (I): (I) wherein: M is a transition metal; L in each occurrence is independently a mono- or polydentate ligand; R1 is a C4-20 alkyl comprising at least one tertiary carbon atom; R2 is a linear, branched or cyclic C1-20 alkyl group; R3 is a linear, branched or cyc...

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Bibliographic Details
Main Author TARRAN, William
Format Patent
LanguageEnglish
French
German
Published 20.03.2019
Subjects
ADHESIVES
CHEMISTRY
DYES
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:A phosphorescent compound of formula (I): (I) wherein: M is a transition metal; L in each occurrence is independently a mono- or polydentate ligand; R1 is a C4-20 alkyl comprising at least one tertiary carbon atom; R2 is a linear, branched or cyclic C1-20 alkyl group; R3 is a linear, branched or cyclic C1-20 alkyl group or a group of formula -(Ar1)p wherein Ar1 in each occurrence is an unsubstituted or substituted aryl or heteroaryl group and p is at least 1; R4 is a group of formula -(Ar2)q wherein Ar2 in is an unsubstituted or substituted aryl or heteroaryl group and q is at least 1; R5 is a substituent; w is 0 or a positive integer; x is at least 1; and y is 0 or a positive integer. The compound may be used as a blue light-emitting material in an organic light-emitting device. Also shown is an organic light emitting device incorporating compound (I) and the method of forming the organic light-emitting device.
Bibliography:Application Number: EP20170722137