Organic material composition and applications thereof

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;
• R1 is -L1Ar1;
• R2 is -L2Ar2;
• R3 is -L3Ar3;
• R4 is -L4Ar4;
• L1 to L4 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
• Ar1 to Ar4 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 Z1, Z3 and Z5 are N;
• wherein, in Z1, Z3 and Z5,
• Z1 and Z3 are N, and Z5 is CLY5ArY5, in which LY5ArY5 and LY6ArY6 are present individually without forming a ring, or joined to form a substituted or unsubstituted benzene ring;
• or
• Z1, Z3, and Z5 are N;
• and
• wherein, ArY2, ArY4, ArY5 and ArY6 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 CRW1RW2;
• when at least one of ArY2, ArY4, ArY5 and ArY6 is selected from Formula 3,
• any one of RY1 to RY8, RW1 and RW2 in Formula 3 is connected to LY2, LY4 or LY6 in Formula 2-1 by chemical bonding;
• ArY2, ArY4, ArY5 and ArY6 are the same or different;
• RY1 to RY8 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;
• RY1 to RY8 are present individually without forming a ring, or any adjacent two of RY1 to RY8 joined to form a ring A, and the ring A is a substituted or unsubstituted C6-C30 aromatic ring;
• RW1 and RW2 are selected from a substituted or unsubstituted C1-C30 alkyl group, and a substituted or unsubstituted C6-C30 aryl group;
• LY2, LY4, LY5 and LY6 are each independently selected from a bond, a substituted or unsubstituted C6-C30 arylene group, and a substituted or unsubstituted C3-C30 heteroarylene group.