Functional material, light-emitting substrate and manufacturing method therefor, and light-emitting apparatus

1. A material with a hole injection function and/or a hole transport function, comprising:

a host material; and

a crystallisation inhibitor doped in the host material;

wherein the crystallisation inhibitor is capable of inhibiting crystallisation of the host material during evaporation, and has a hole injection function and/or a hole transport function; and

based on 100 parts by weight of the material with the hole injection function and/or the hole transport function, there are 90 to 99 parts by weight of the host material and 1 to 10 parts by weight of the crystallisation inhibitor.

2. The material with the hole injection function and/or the hole transport function according to claim 1 , wherein

the host material includes at least one of a hole injection material and a hole transport material.

3. The material with the hole injection function and/or the hole transport function according to claim 1 , wherein

the host material includes a hole injection material and a hole transport material.

4. The material with the hole injection function and/or the hole transport function according to claim 1 , wherein

the crystallisation inhibitor is any one selected from or a mixture of two or more selected from aromatic amine derivatives.

5. The material with the hole injection function and/or the hole transport function according to claim 4 , wherein

the crystallisation inhibitor is any one selected from or a mixture of two or more selected from N,N′-Bis(3-methylphenyl)-N,N′-bis(phenyl)benzidine, N,N′-di(α-naphthyl)-N,N′-diphenyl-4,4′-naphthidine, N,N′-Bis(3,4-dimethylphenyl)-N,N′-bis(phenyl)benzidine, N,N,N′,N′-Tetrakis(4-methylphenyl)benzidine, and 4,4′,4″-Tris[phenyl(m-tolyl)amino]triphenylamine.

6. The material with the hole injection function and/or the hole transport function according to claim 1 , wherein

there are 93 to 97 parts by weight of the host material, and the balance is the crystallisation inhibitor.

7. The material with the hole injection function and/or the hole transport function according to claim 1 , wherein

the host material includes a hole injection material and a hole transport material, and the host material is determined in part by weight; there are 5 to 40 parts by weight of the hole injection material, and the balance is the hole transport material.

8. The material with the hole injection function and/or the hole transport function according to claim 7 , wherein

there are 25 to 35 parts by weight of the hole injection material, and the balance is the hole transport material.

9. The material with the hole injection function and/or the hole transport function according to claim 2 , wherein

the hole injection material is any one selected from or a mixture of two or more selected from Hexaazatriphenylenehexacabonitrile, 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethane, and Tris(4-bromophenyl) ammoniumyl hexachloroantimonate.

10. The material with the hole injection function and/or the hole transport function according to claim 2 , wherein

the hole transport material is any one selected from or a mixture of two or more selected from N,N′-Bis(1-naphthalenyl)-N,N′-bisphenyl-(1,1′-biphenyl)-4,4′-diamine, N,N′-diphenyl-N,N′-di(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine, TPTE and 1,3,5-Tris[(3-methylphenyl)phenylamino]benzene.

11. A light-emitting substrate, comprising:

a substrate; and

a plurality of light-emitting devices disposed on the substrate; wherein

at least one light-emitting device includes: a first electrode and a second electrode that are stacked; a light-emitting layer disposed between the first electrode and the second electrode; and a functional layer disposed between the first electrode and the second electrode; wherein

a material of the functional layer is the material with the hole injection function and/or the hole transport function according to claim 1 .

12. The light-emitting substrate according to claim 11 , further comprising:

a pixel defining layer having a plurality of openings; wherein

the plurality of light-emitting devices include a thin film with a hole injection function and/or a hole transport function that is disposed on a side of the pixel defining layer away from the substrate; the thin film with the hole injection function and/or the hole transport function includes a portion located in an opening in the openings and a portion located outside the openings; and the portion of the thin film with the hole injection function and/or the hole transport function located in the opening constitutes the functional layer included in the light-emitting device.

13. The light-emitting substrate according to claim 11 , wherein

the functional layer is a hole injection layer disposed between the first electrode and the light-emitting layer, and a thickness of the hole injection layer is in a range of 1 nm to 10 nm, inclusive.

14. The light-emitting substrate according to claim 11 , wherein

the at least one light-emitting device includes at least one of a light-emitting device emitting red light, a light-emitting device emitting green light or a light-emitting device emitting blue light.

15. A light-emitting apparatus, comprising the light-emitting substrate according to claim 11 .

16. A manufacturing method of a light-emitting substrate, comprising:

forming a plurality of light-emitting devices on a substrate; wherein

at least one light-emitting device includes: a first electrode and a second electrode that are stacked; a light-emitting layer formed between the first electrode and the second electrode; and a functional layer formed between the first electrode and the second electrode;

wherein a material of the functional layer is the material with the hole injection function and/or the hole transport function according to claim 1 .

17. The manufacturing method of the light-emitting substrate according to claim 16 , wherein

the light-emitting substrate further includes a pixel defining layer having a plurality of openings; forming the plurality of light-emitting devices on the substrate includes:

forming a thin film with a hole injection function and/or a hole transport function on a side of the pixel defining layer away from the substrate on the substrate by an evaporation process; wherein the thin film with the hole injection function and/or the hole transport function includes a portion located in an opening in the openings and a portion located outside the openings; and the portion of the thin film with the hole injection function and/or the hole transport function located in the opening constitutes the functional layer included in the light-emitting device.

18. The material with the hole injection function and/or the hole transport function according to claim 6 , wherein

the host material includes a hole injection material and a hole transport material, and the host material is determined in part by weight; there are 5 to 40 parts by weight of the hole injection material, and the balance is the hole transport material.

19. The material with the hole injection function and/or the hole transport function according to claim 18 , wherein

there are 25 to 35 parts by weight of the hole injection material, and the balance is the hole transport material.