申请人:XIA Chuanjun
公开号:US20110204333A1
公开(公告)日:2011-08-25
Compounds including a ligand with a dibenzo-fused 5-membered ring substituent are provided. In particular, the compounds may be iridium complexes including imidazole coordinated to the dibenzo-substituted ligand. The dibenzo-fused 5-membered ring moiety of the ligand may be twisted or minimally twisted out of plane with respect to the rest of the ligand structure. The compound may be used in organic light emitting devices, particularly as emitting dopants in blue devices. Devices comprising the compounds may demonstrate improved stability while maintaining excellent color.
提供了包括带有二苯并嵌合的5元环取代基的配体的化合物。具体来说,这些化合物可能是铱配合物,包括咪唑配位到二苯取代的配体上。配体的二苯嵌合的5元环部分可能与配体结构的其余部分扭曲或最小程度扭曲。该化合物可用于有机发光器件,特别是作为蓝光器件中的发射掺杂剂。包含这些化合物的器件可能表现出改善的稳定性,同时保持优秀的颜色。