[EN] BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLE DERIVATIVES FOR ORGANIC LIGHT EMITTING DIODES<br/>[FR] DÉRIVÉS BENZIMIDAZOLO[1,2-A]BENZIMIDAZOLE POUR DES DIODES ÉLECTROLUMINESCENTES ORGANIQUES
申请人:IDEMITSU KOSAN CO
公开号:WO2017093958A1
公开(公告)日:2017-06-08
Compounds of formula (I) and their use in electronic devices, especially electroluminescent devices: (I) wherein at least two of the substituents R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, or R7 and R8 form together one of the following ring systems (IIa), (IIb) (IIc). When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the compounds of formula (I) may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices.
化合物的结构式(I)及其在电子器件中的应用,特别是电致发光器件中的应用:(I)其中至少两个取代基R1和R2、R2和R3、R3和R4、R5和R6、R6和R7或R7和R8共同形成以下环系之一(IIa)、(IIb)、(IIc)。当作为电荷传输材料、电荷阻挡材料和/或宿主材料在电致发光器件中使用时,化合物的结构式(I)可能提供电致发光器件的效率、稳定性、可制造性或光谱特性的改进,并降低电致发光器件的驱动电压。