A light emitting material is represented by the following formula (1), the organic EL device employing the material as delayed fluorescence emitting dopant or fluorescence emitting dopant can display good performance like as lower driving voltage and power consumption, especially doping with the host (H1 to H4) and the second host (SH1 to SH4) can increasing efficiency and half-life time.
wherein G represents the following formula (2):
L, m, n, p, R1 to R4, Ar and X are the same definition as described in the present invention.
一种
发光材料由下式(1)表示,采用该材料作为延迟荧光发射掺杂剂或荧光发射掺杂剂的有机电致发光器件可以显示出较低的驱动电压和功耗等良好性能,特别是掺杂了宿主(H1 至 H4)和第二宿主(SH1 至 SH4)可以提高效率和半衰期时间。
其中 G 表示下式(2):
L、m、n、p、R1 至 R4、Ar 和 X 的定义与本发明所述相同。