Organic material composition and applications thereof

1 . An organic material composition, wherein the organic material composition comprises at least one compound having a structure represented by Formula 1 and at least one compound having a structure represented by Formula 2-1:

wherein, R is selected from hydrogen, deuterium, halogen, a cyano group, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C3-C30 heteroaryl group;

R 1 is -L 1 Ar 1 ; R 2 is -L 2 Ar 2 ; R 3 is -L 3 Ar 3 ; R 4 is -L 4 Ar 4 ;

L 1 to L 4 are each independently selected from a bond, a substituted or unsubstituted C6-C30 arylene group, and a substituted or unsubstituted C3-C30 heteroarylene group; and

Ar 1 to Ar 4 are each independently selected from hydrogen, deuterium, halogen, a cyano group, a substituted or unsubstituted C6-C60 arylamino group, a substituted or unsubstituted C3-C60 heteroarylamino group, a substituted or unsubstituted C6-C60 aryl group, and a substituted or unsubstituted C3-C60 heteroaryl group;

wherein at least two of Z 1 , Z 3 and Z 5 are N;

wherein, in Z 1 , Z 3 and Z 5 ,

Z 1 and Z 3 are N, and Z 5 is CL Y5 Ar Y5 , in which L Y5 Ar Y5 and L Y6 Ar Y6 are present individually without forming a ring, or joined to form a substituted or unsubstituted benzene ring; or

Z 1 , Z 3 , and Z 5 are N; and

wherein, Ar Y2 , Ar Y4 , Ar Y5 and Ar Y6 are each independently selected from hydrogen, deuterium, halogen, a cyano group, and a group selected from a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a phenylnaphthyl group, a naphthylphenyl group, a triphenylenylene group, an anthryl group, a phenanthryl group, a chrysenyl group, each of which is substituted or unsubstituted; and a group represented by Formula 3:

Y is selected from O, S, and CR W1 R W2 ;

when at least one of Ar Y2 , Ar Y4 , Ar Y5 and Ar Y6 is selected from Formula 3,

any one of R Y1 to R Y8 , R W1 and R W2 in Formula 3 is connected to L Y2 , L Y4 or L Y6 in Formula 2-1 by chemical bonding;

Ar Y2 , Ar Y4 , Ar Y5 and Ar Y6 are the same or different;

R Y1 to R Y8 are each independently selected from hydrogen, deuterium, halogen, a cyano group, a substituted or unsubstituted C1-C30 alkyl group, a C1-C30 alkyl group in which one or more methylene groups are independently substituted by —O— and/or —S— in a manner that O atom and/or S atom are not adjacent to each other, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C3-C30 heteroaryl group, a substituted or unsubstituted C4-C30 heteroarylalkyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 heterocycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, and a substituted or unsubstituted C6-C30 aryloxy group;

R Y1 to R Y8 are present individually without forming a ring, or any adjacent two of R Y1 to R Y8 joined to form a ring A, and the ring A is a substituted or unsubstituted C6-C30 aromatic ring;

R W1 and R W2 are selected from a substituted or unsubstituted C1-C30 alkyl group, and a substituted or unsubstituted C6-C30 aryl group;

L Y2 , L Y4 , L Y5 and L Y6 are each independently selected from a bond, a substituted or unsubstituted C6-C30 arylene group, and a substituted or unsubstituted C3-C30 heteroarylene group.

2 . The organic material composition according to claim 1 , wherein in Formula 1, at least one of Ar 1 to Ar 4 is a group represented by Formula b:

Ar 5 and Ar 6 are each independently selected from a substituted or unsubstituted C6-C30 aryl group, and a substituted or unsubstituted C3-C30 heteroaryl group.

3 . The organic material composition according to claim 1 , wherein in Formula 1, at least one of Ar 1 to Ar 4 is

the remaining ones of Ar 1 to Ar 4 are each independently selected from hydrogen, deuterium, and a group selected from a phenyl group, a naphthyl group, a biphenylyl group, a terphenylyl group, a phenanthryl group, a fluoranthenyl group, a triphenylenylene group, a dimethylfluorenyl group, a diphenylfluorenyl group, a spiro-bifluorenyl group, a benzodimethylfluorenyl group, a benzodiphenylfluorenyl group, a benzo-spiro-bifluorenyl group, a dibenzofuryl group, a dibenzothiophenyl group, a carbazolyl group, a benzocarbazolyl group, and a dibenzocarbazolyl group, each of which is substituted or unsubstituted;

R T1 to R T8 are each independently selected from hydrogen, deuterium, halogen, a cyano group, a substituted or unsubstituted C1-C30 alkyl group, a C1-C30 alkyl group in which one or more methylene groups are independently substituted by —O— and/or —S— in a manner that O atom and/or S atom are not adjacent to each other, a substituted or unsubstituted C7-C30 arylalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C3-C30 heteroaryl group, a substituted or unsubstituted C4-C30 heteroarylalkyl group, a substituted or unsubstituted C3-C30 cycloalkyl group, a substituted or unsubstituted C3-C30 heterocycloalkyl group, a substituted or unsubstituted C3-C30 cycloalkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, and a substituted or unsubstituted C6-C30 aryloxy group;

R T1 to R T8 are present individually without forming a ring, or any adjacent two of R T1 to R T8 joined to form a ring B, and the ring B is a substituted or unsubstituted C6-C30 aromatic ring.

4 . The organic material composition according to claim 1 , wherein in Formula 1, R is selected from a phenyl group and a biphenylyl group, each of which is substituted or unsubstituted;

at least one of R 1 , R 2 , R 3 and R 4 is hydrogen;

when R 1 , R 2 , R 3 or R 4 is not hydrogen, L 1 to L 4 are each independently selected from a bond, a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group, and a substituted or unsubstituted terphenylene group; and

at least one of Ar 1 to Ar 4 is a group represented by Formula b, and Formula b is any one selected from b-1, b-2, b-3, b-4, b-5 and b-6 as below:

R T1 to R T8 are each independently selected from hydrogen, deuterium, and a group selected from a methyl group, an ethyl group, a tert-butyl group, an adamantly, a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a phenanthryl group, an anthryl group, a triphenylenylene group, a phenylnaphthyl group, a naphthylphenyl group, a pyridyl group, a bipyridyl group, a dibenzofuryl group, a dibenzothiophenyl group, a benzonaphthofuryl group, a benzonaphthothiophenyl group, a dinaphthofuryl group, a dinaphthothiophenyl group, a dibenzofurylphenyl group, a dibenzothiophenylphenyl group, a dimethylfluorenyl group, a benzodimethylfluorenyl group, a diphenylfluorenyl group, a spiro-bifluorenyl group, and a dimethylfluorenylphenyl group, each of which is substituted or unsubstituted;

Ar 1 to Ar 4 are each independently selected from hydrogen, deuterium, and a group selected from a phenyl group, a naphthyl group, a biphenylyl group, a terphenylyl group, a phenanthryl group, a fluoranthenyl group, a triphenylenylene group, a dimethylfluorenyl group, a diphenylfluorenyl group, a spiro-bifluorenyl group, a benzodimethylfluorenyl group, a benzodiphenylfluorenyl group, a benzo-spiro-bifluorenyl group, a dibenzofuryl group, a dibenzothiophenyl group, a carbazolyl group, a benzocarbazolyl group, and a dibenzocarbazolyl group, each of which is substituted or unsubstituted.

5 . The organic material composition according to claim 1 , wherein the compound having a structure represented by Formula 1 is selected from the following compounds:

6 . The organic material composition according to claim 1 , wherein the group represented by Formula 3 is any one selected from the following groups:

R W1 and R W2 are each independently selected from a methyl group and a phenyl group; or R W1 and R W2 joined to form a spiro ring;

R Y1 -R Y8 are each independently selected from hydrogen, deuterium, and a group selected from a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a phenylnaphthyl group, a naphthylphenyl group, an anthryl group, a phenanthryl group, a benzophenanthryl group, a pyridyl group, a dibenzofuryl group, a dibenzothiophenyl group, a dibenzofurylphenyl group, a dibenzothiophenylphenyl group, a dimethylfluorenyl group, a diphenylfluorenyl group, a spiro-bifluorenyl group, a benzonaphthofuryl group, and a benzonaphthothiophenyl group, each of which is substituted or unsubstituted; R Y1 to R Y8 are present individually without forming a ring, or any adjacent two of R Y1 to R Y8 joined to form a ring A, and the ring A is a substituted or unsubstituted benzene ring;

L Y1 , L Y2 , L Y3 , L Y4 , L Y5 and L Y6 are each independently selected from a bond, a phenylene group, a biphenylene group, and a naphthylene group.

7 . The organic material composition according to claim 1 , wherein the compound having a structure represented by Formula 2-1 is selected from the compounds shown as below:

and the compound having a structure represented by Formula 1 and the compound having a structure represented by Formula 2-1 have a weight ratio of 1:9 to 9:1.

8 . The organic material composition according to claim 7 , wherein the compound having a structure represented by Formula 1 and the compound having a structure represented by Formula 2-1 have a weight ratio of 4:6 to 6:4.

9 . An organic electroluminescence material, wherein the organic electroluminescence material comprises the organic material composition according to claim 1 .

10 . A method for preparing an optical element comprising an emitting layer, the method comprising: co-depositing a light-emitting host material and a guest material to form the emitting layer; wherein the light-emitting host material comprises the organic material composition according to claim 1 , and the guest material comprises a phosphorescence dopant.

11 . An organic electroluminescence element, wherein the organic electroluminescence element comprises an anode, a cathode and an organic layer disposed between the anode and the cathode; and the organic layer comprises the organic material composition according to claim 1 .

12 . An electronic device, wherein the electronic device comprises the organic electroluminescence element according to claim 11 .