ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:YEN Feng-Wen
公开号:US20190198781A1
公开(公告)日:2019-06-27
An organic compound which can be used as the phosphorescent host material, the fluorescent host material, or the fluorescent dopant material of the light emitting layer, and/or the electron transporting material in the organic electroluminescence device is disclosed. The organic electroluminescence device employing the organic compound can lower driving voltage, prolong half-lifetime, and increase current efficiency.
An organic electroluminescence device includes an anode, an emitting layer, an electron-transporting region, and a cathode, the anode, the emitting layer, the electron-transporting region, and the cathode being stacked in this order, the emitting layer including a host material, and a dopant material that emits fluorescence having a main peak wavelength of 550 nm or less, the electron-transporting region including a barrier layer that is adjacent to the emitting layer, and the barrier layer including a barrier material that includes an electron-transporting structural part, and a triplet barrier structural part that includes a fused polycyclic aromatic hydrocarbon compound, and satisfies the relationship “E
T
b
>E
T
h
” (where, E
T
h
is the triplet energy of the host material, and E
T
b
is the triplet energy of the barrier material).