为了实现蓝色磷光有机发光二极管(PhOLED)的高效率,通常假定主体材料的三重态能量(T 1)高于蓝色磷光体。具有低单峰态能量(S 1)为2.80 eV且三重态能量为2.71 eV的有机小分子可用作蓝色磷光体的主体材料[bis(4,6-difluorophenylpyridinato- N,C 2')铱( III)]四(1-吡唑基)硼酸酯(FIr6; T 1 = 2.73 eV)。在光激发和电激发过程中,从基质材料到FIr6的能量转移都是有效的。在三有机层器件中,最大电流效率为37 cd A -1基于FIr6的蓝色PhOLED的功率效率达到40 Lm W -1。
为了实现蓝色磷光有机发光二极管(PhOLED)的高效率,通常假定主体材料的三重态能量(T 1)高于蓝色磷光体。具有低单峰态能量(S 1)为2.80 eV且三重态能量为2.71 eV的有机小分子可用作蓝色磷光体的主体材料[bis(4,6-difluorophenylpyridinato- N,C 2')铱( III)]四(1-吡唑基)硼酸酯(FIr6; T 1 = 2.73 eV)。在光激发和电激发过程中,从基质材料到FIr6的能量转移都是有效的。在三有机层器件中,最大电流效率为37 cd A -1基于FIr6的蓝色PhOLED的功率效率达到40 Lm W -1。
A facile synthesis of nitrogen-containing six-membered benzofuzed phosphacycles has been described. This cyclization reaction triggered by Tf2O provides an expedient protocol of phosphacycles with a simple operation at mild conditions. The preliminary photophysicalstudies of these novel materials reveal that the fluorescence intensity enhances with the molecular aggregation in the solid state and
ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE EMPLOYING THE SAME
申请人:Huang Heh-Lung
公开号:US20110198571A1
公开(公告)日:2011-08-18
Organic compounds and organic electroluminescence devices employing the same are provided. The organic compound has a chemical structure represented as follows:
wherein: R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, and R
7
are each independently an H, C
1-8
alkyl group, C
1-8
alkoxy group, C
1-8
halo-alkyl group, aryl group, heteroaryl group, cycloalkyl group, hetero-cycloalkyl group, or cycloaliphatic group; Z is independently
and R
8
and R
9
are each independent an aryl group, heteroaryl group, cycloalkyl group, hetero-cycloalkyl, or cycloaliphatic group.
Provided is an organic light emitting device (OLED) comprising 9,10-dihydroacridine derivative represented by the following Formula (I):
The 9,10-dihydroacridine derivative can be used as a hole transport material or an emission material of an organic light emitting device. With the aromaticity of the 9,10-dihydroacridine derivative, the OLED can have improved current efficiency and chromaticity.