申请人:Siemens Aktiengesellschaft
公开号:US20180240975A1
公开(公告)日:2018-08-23
A bi-nuclear phosphorescent emitter according to the following formula is disclosed. The emitter may include metal atoms M
1
and M
2
, fluorescent emitter ligands L
F
, L
F
′, terminal ligands L
T
, L
T
′, and bridging ligands L
V
, L
V
′, wherein M
1
and M
2
are In, Tl, Sn, Pb, Sb, and Bi; L
F and
L
F
′ are comprise substituted or non-substituted C6-C70 aromatics or heteroaromatics; L
V
and L
V
′ are fluorinated or non-fluorinated, bi-dentate C2-C30 heteroalkyl or heteroaromatics; L
T
and L
T
′ 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.