Fluorene-containing aryl amine compound and organic electroluminescent device thereof
A compound and aromatic amine technology, applied in the field of aromatic amine compounds and organic electroluminescent devices, can solve the problems of unbalanced charge in the light-emitting layer, reducing the light-emitting efficiency of OLED devices, easy transfer of excitons to the hole transport layer, etc. Good hole transport performance, good photoelectric performance and thermal stability, the effect of increasing rigidity
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[0021] The aryl group described in the present invention refers to the general term for the remaining groups after removing a hydrogen atom from an aromatic nucleus carbon of an aromatic hydrocarbon molecule, which can be a single-ring aryl group or a condensed-ring aryl group, for example, it can be selected from phenyl , Pentadeuterophenyl, biphenyl, terphenyl, naphthyl, anthracenyl, phenanthrenyl, pyrenyl, fluorenyl, triphenylene, etc., but not limited thereto.
[0022] The heteroaryl group mentioned in the present invention refers to the general term of the group obtained by replacing one or more aromatic nuclear carbons in the aryl group with heteroatoms, the heteroatoms include but not limited to oxygen, sulfur or nitrogen, the heteroaryl The radical can be a monocyclic heteroaryl group or a condensed ring heteroaryl group, for example, can be selected from pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, triazinyl, quinolinyl, isoquinolyl, carbazolyl, Thienyl, benzothienyl, ...
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