Ir phenyl parazolepyrazole complexes substituted with one or more strong electron withdrawing groups such as cyano groups resulted in enhancing the metal to ligand charge transfer (MLCT) which in turn resulted in enhanced emission efficiency and red shifted emission.
用一个或多个强取电子基团(如
氰基)取代的苯基对唑
吡唑铱复合物增强了
金属到
配体的电荷转移(MLCT),进而提高了发射效率和红移发射。