Bi-nuclear main group metal phosphorescent emitter
AssigneeSiemens Aktiengesellschaft
InventorsAna-Maria Krestel, Anna Maltenberger, Marina A Petrukhina, Guenter Schmid
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Abstract
A bi-nuclear phosphorescent emitter according to the following formula is disclosed. The emitter may include metal atoms M1 and M2, fluorescent emitter ligands LF, LF′, terminal ligands LT, LT′, and bridging ligands LV, LV′, wherein M1 and M2 are In, Tl, Sn, Pb, Sb, and Bi; LF and LF′ are comprise substituted or non-substituted C6-C70 aromatics or heteroaromatics; LV and LV′ are fluorinated or non-fluorinated, bi-dentate C2-C30 heteroalkyl or heteroaromatics; LT and LT′ are fluorinated or non-fluorinated, mono-, bi-, or tri-dentate C2-C30 O—, S—, N, heteroalkyl or heteroaromatics; and n and m are 1 or 2 independently of one another.
Claims12
A bi-nuclear phosphorescent emitter according to the following formula
- wherein the emitter comprises metal atoms M1 and M2, fluorescent emitter ligands LF, LF′, terminal ligands LT, LT′, and bridging ligands LV, LV′,
- wherein each of M1 and M2 is an element selected from the group consisting of In, Tl, Sn, Pb, Sb, and Bi;
- wherein each of LF, LF′ is selected from the group consisting of 4,7-di(9H-carbazol-9-yl)-1,10-phenanthroline, 2,6-bis(3-(9H-carbazol-9-yl)phenyl)pyridine, and 3,5-bis(3-(9H-carbazol-9-yl)phenyl)pyridine;
- wherein each of LV and LV′ is a compound selected from the group consisting of fluorinated and non-fluorinated, bi-dentate C2-C30 heteroalkyl and heteroaromatics;
- wherein each of LT and LT′ is a compound selected from the group consisting of fluorinated and non-fluorinated, mono-, bi-, or tri-dentate C2-C30 O—, S—, N—, heteroalkyl or heteroaromatics;
- and
- wherein n is 1 or 2, and m is 1 or 2.
Dependencies are inferred from the claim text.