P-type dopant and organic light emitting diode
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorJiajia Luo
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Abstract
A P-type dopant is provided, which is a planar aromatic compound having different numbers of fluorine atoms and cyano groups connected at a periphery thereof, and allows adjustment of highest occupied molecular orbital (HOMO) energy levels and lowest unoccupied molecular orbital (LUMO) energy levels and effectively increases luminous efficiency of a light emitting layer. Moreover, an organic light emitting diode is disclosed, including an anode, a cathode, and a light emitting structure located between the anode and the cathode, wherein a hole injecting layer of the light emitting structure is a hole injecting layer including the P-type dopant described above.
Claims12
A P-type dopant, wherein the P-type dopant is a planar aromatic compound comprising different numbers of fluorine atoms and cyano groups connected at a periphery, and has a following structural formula:
An organic light emitting diode, wherein a material of a hole injecting layer in the organic light emitting diode is a hole injecting material comprising a P-type dopant, and the P-type dopant is a planar aromatic compound comprising different numbers of fluorine atoms and cyano groups connected at a periphery, and has a following structural formula:
Dependencies are inferred from the claim text.