A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer.
New materials with aza-dibenzothiophene or aza-dibenzofuran core for pholed
申请人:Universal Display Corporation
公开号:EP2703405A2
公开(公告)日:2014-03-05
The present invention is directed at a new class of compounds containing an azadibenzothiophene or aza-dibenzofuran core are provided. In particular, azadibenzothiophene compounds or aza-dibenzofuran compounds further substituted with triphenylene and/or nitrogen-containing substituents are provided. These compounds may be advantageously used in phosphorescent organic light emitting devices. Preferably, these compounds may be used as a host material in an emissive layer or as a material in an enhancement layer.
NEW MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED
申请人:Universal Display Corporation
公开号:EP2387576B1
公开(公告)日:2016-01-13
CAPTURE AGENTS FOR UNSATURATED METAL COMPLEXES
申请人:Thompson Mark E.
公开号:US20120138906A1
公开(公告)日:2012-06-07
Compounds that act as capture agents to sequester unsaturated metal complexes are provided. In particular, the compounds may be host materials, dopant materials, or co-dopant materials containing functional groups, such as an isocyanide or a phosphine group, which are suitable for trapping an unsaturated coordination complex. These compounds may be used in organic light emitting devices, particularly blue devices, to provide improved device lifetime.