A compound and use thereof

Abstract

The present application relates to a kind of compound and its application, the compound has the structure shown in formula I, there is the aryl group of single bond or aryl group and anthracene group in the compound, and also substituted with aryl or heteroaromatic group on anthracene group, the compound with this special structure is very suitable for being applied in OLED device, especially as the blue light host material in device, can effectively improve the efficiency and life of device, while reducing drive voltage.

Claims

1. A compound, characterized in that, The compound has the structure shown in Formula I; I； In formula I, the L 1 and L 2 Each is independently selected from one of the single-bonded, substituted or unsubstituted C6-C12 arylene groups; In Formula I, Ar is selected from one of substituted or unsubstituted C6-C24 aryl groups and substituted or unsubstituted C3-C20 heteroaryl groups; In formula I, R 1 -R 8 Each is independently selected from one of hydrogen, substituted or unsubstituted C1-C10 chain alkyl, substituted or unsubstituted C3-C10 cycloalkyl, substituted or unsubstituted C6-C20 aryl, or substituted or unsubstituted C3-C20 heteroaryl; In formula I, R 9 -R 16 One of them is related to the L. 1 The connecting bonds are each independently selected from one of hydrogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C6-C20 aryl, and C3-C20 heteroaryl; L 1 L 2 Ar, R 1 -R 8 In this context, each of the substituted groups is independently selected from any one or at least a combination of two of amino, cyano, halogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C1-C10 alkoxy, C1-C6 thioalkoxy, C6-C20 aryl, and C3-C20 heteroaryl.

2. The compound according to claim 1, characterized in that, The compound has the structure shown in formula II-1, II-2 or II-3; ； The L 1 and L 2 Each is independently selected from one of the single-bonded, substituted or unsubstituted C6-C12 arylene groups; The Ar is selected from one of substituted or unsubstituted C6-C24 aryl and substituted or unsubstituted C3-C20 heteroaryl; The R 1 -R 8 Each is independently selected from one of hydrogen, substituted or unsubstituted C1-C10 chain alkyl, substituted or unsubstituted C3-C10 cycloalkyl, substituted or unsubstituted C6-C20 aryl, or substituted or unsubstituted C3-C20 heteroaryl; The R 9 '-R 16 Each is independently selected from one of hydrogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C6-C20 aryl, and C3-C20 heteroaryl; L 1 L 2 Ar, R 1 -R 8 In this context, each of the substituted groups is independently selected from any one or at least a combination of two of amino, cyano, halogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C1-C10 alkoxy, C1-C6 thioalkoxy, C6-C20 aryl, and C3-C20 heteroaryl.

3. The compound according to claim 1 or 2, characterized in that, The L 1 and L 2 Each is independently selected from a single-bonded, substituted, or unsubstituted phenylene group; L 1 and L 2 In this context, each of the substituted groups is independently selected from any one or at least a combination of two of amino, cyano, halogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C1-C10 alkoxy, C1-C6 thioalkoxy, C6-C20 aryl, and C3-C20 heteroaryl.

4. The compound according to claim 1 or 2, characterized in that, The Ar is selected from one of substituted or unsubstituted C6-C24 fused-ring aryl groups and substituted or unsubstituted C3-C20 fused-ring heteroaryl groups; In Ar, each of the substituted groups is independently selected from any one or at least a combination of two of amino, cyano, halogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C1-C10 alkoxy, C1-C6 thioalkoxy, C6-C20 aryl, and C3-C20 heteroaryl.

5. The compound according to claim 1 or 2, characterized in that, The Ar is selected from one of the following groups, either substituted or unsubstituted: ； In Ar, each of the substituted groups is independently selected from any one or at least a combination of two of amino, cyano, halogen, C1-C10 chain alkyl, C3-C10 cycloalkyl, C1-C10 alkoxy, C1-C6 thioalkoxy, C6-C20 aryl, and C3-C20 heteroaryl.

6. The compound according to claim 5, characterized in that, The Ar is selected from one of the following groups: ； The wavy lines indicate the bonds connecting groups.

7. The compound according to claim 1 or 2, characterized in that, In formula I, R 9 -R 16 One of them is related to the L. 1 The linkage bonds are all hydrogen, and / or, the R 1 -R 8 All are hydrogen; Alternatively, in equations II-1 to II-3, the R... 9 '-R 16 'All are hydrogen, and / or, the R 1 -R 8 Both are hydrogen.

8. The compound according to claim 1, characterized in that, The compound has one of the following structures: 。 9. An application of a compound according to any one of claims 1-8, characterized in that, The compound is used as a blue light host material in organic electroluminescent devices.

10. An organic electroluminescent device, characterized in that, The organic electroluminescent device includes a first electrode, a second electrode, and at least one organic layer inserted between the first electrode and the second electrode. The organic layer includes a light-emitting layer, which includes a host material and a dopant material. The host material includes at least one compound according to any one of claims 1-8.

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