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US 12,540,124 B2Granted
Compound, material for an organic electroluminescent device and application thereof
AssigneesWuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Micro-Electronics Co., Ltd. Shanghai Branch
InventorsWenpeng Dai, Wei Gao, Lei Zhang, Lu Zhai, Xia Li
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Abstract
The present disclosure relates to a compound, a material for an organic electroluminescent device and an application thereof. The compound has a structure represented by Formula (1). The compound has a relatively high refractive index in the region of visible light (400-750 nm), which is conducive to improving the light-emitting efficiency.
Claims15
A compound having a structure represented by Formula (1):
- wherein, X1 to X10 are each independently selected from the group consisting of N, CH and CRa, wherein Ra is selected from the group consisting of a deuterium atom, CD3, CD2CH3, CD2CD3, cyano, substituted or unsubstituted C6-C60 aryl, and a combination of at least two selected therefrom;
- wherein, n is an integer from 0 to 4, and L is selected from the group consisting of substituted or unsubstituted C6-C60 arylene and substituted or unsubstituted C3-C60 heteroarylene;
- wherein, m1 and m2 are each independently an integer from 0 to 4, and Ar1 and Ar2 are each independently selected from the following substituted or unsubstituted groups:
- phenylene, biphenylene, terphenylene, tetraphenylene, naphthylene, phenanthrylene, carbazolylene, dibenzofurylene, dibenzothienylene, pyrimidinylene, triazinylene, indolocarbazolylene, indolobenzofurylene, indolobenzothienylene, benzofuropyrimidinylene, benzothienopyrimidinylene, anthrylene and pyrenylene;
- wherein, X and Y are each independently selected from substituted or unsubstituted C3-C60 electron withdrawing heteroaryl;
- wherein the C3-C60 electron withdrawing heteroaryl is any one selected from the group consisting of the following groups:
- wherein, if the group only has one #, the # represents a linkage site of the group, and wherein if the group has at least two #, a linkage site of the group is selected from any one of the #;
- wherein Q is selected from the group consisting of an O atom, a S atom and NR8;
- wherein each of R6 to R7 is independently selected from the group consisting of hydrogen, protium, deuterium, tritium, halogen, cyano, C1-C10 alkyl, C1-C10 alkoxy, C6-C60 aryl and C3-C60 heteroaryl;
- and
- wherein the ring A is fused at any position of a benzene ring where the ring A is able to be fused and the ring A is selected from the group consisting of substituted or unsubstituted C6-C30 aromatic rings and substituted or unsubstituted C3-C30 heteroaromatic rings;
- and
- wherein substituted groups in Ra, L, Ar1, Ar2, X and Y are each independently selected from the group consisting of protium, deuterium, tritium, cyano, halogen, C1-C10 alkyl, C1-C10 haloalkyl, C1-C10 alkoxy, C6-C60 aryl, C3-C60 heteroaryl, and a combination of at least two selected therefrom.
10 more elements
Dependencies are inferred from the claim text.