This invention relates to chrysene compounds that are useful in electroluminescent applications and are capable of blue emission. It also relates to electronic devices in which the active layer includes such a chrysene compound.
There is provided an electroactive composition. The composition has (a) a host material having Formula I
and (b) an electroactive dopant capable of electroluminescence having an emission maximum between 500 and 700 nm. In Formula I:
R
1
to R
8
are the same or different and can be H, alkyl, or alkoxy, or adjacent R groups may be joined together to form a 5- or 6-membered aliphatic ring, with the proviso that at least one of R
1
to R
8
is not H,
Ar
1
to Ar
4
are the same or different and are aryl groups,
A is the same or different at each occurrence and can be a single bond or a phenylene group, and
a and b are the same or different and are an integer of 0-2.
US8932733B2
申请人:——
公开号:US8932733B2
公开(公告)日:2015-01-13
[EN] CHRYSENES FOR BLUE LUMINESCENT APPLICATIONS<br/>[FR] CHRYSÈNES DESTINÉS À DES APPLICATIONS LUMINESCENTES BLEUES
申请人:DU PONT
公开号:WO2008147721A1
公开(公告)日:2008-12-04
[EN] This invention relates to chrysene compounds that are useful in electroluminescent applications and are capable of blue emission. It also relates to electronic devices in which the active layer includes such a chrysene compound. [FR] La présente invention concerne des composés de chrysène qui sont utiles dans des applications électroluminescentes et qui sont susceptibles de fournir une émission bleue. L'invention concerne également des dispositifs électroniques dans lesquels la couche active comprend un tel composé de chrysène.