Iridium complex and organic electroluminescence device using the same
The present invention discloses an iridium complex of formula (1) below and an organic electroluminescence device employing the iridium complex as the phosphorescent dopant material. The organic EL device can display good performance, such as reduced driving voltage, increased current efficiency, and longer half-life time.
1. An iridium complex having the structure:
2. An iridium complex selected from the following compounds:
3. An organic electroluminescence device, comprising a pair of electrodes composed of a cathode and an anode, and a light emitting layer between the pair of electrodes, wherein the light emitting layer comprises the iridium complex of claim 2 .
4. The organic electroluminescence device of claim 3 , wherein the light emitting layer further includes a host material, and the iridium complex of formula (1) is used as a phosphorescent dopant material.
5. The organic electroluminescence device of claim 4 , wherein the host material is selected from the following compounds:
6. The organic electroluminescence device of claim 3 , wherein the light emitting layer emits red, green, blue, or yellow phosphorescence.
7. The organic electroluminescence device of claim 3 , wherein the organic electroluminescence device is a lighting panel.
8. The organic electroluminescence device of claim 3 , wherein the organic electroluminescence device is a backlight panel.