ORGANIC COMPOUND AND USE THEREOF, PASSIVATION FILM, SOLAR BATTERY, AND ELECTRICAL APPARATUS

1 . An organic compound, shown as in formula (1):

Ar-(L-R 1 )n 1    (1),

wherein Ar is selected from any one of substituted or unsubstituted aryl with 6 to 50 ring atoms, substituted or unsubstituted heteroaryl with 5 to 50 ring atoms, and arylamino as shown in formula (A):

L is selected from acyclic alkylene with 1 to 10 carbon atoms; R 1 is an oxyacid group;

Ar 1 to Ar 3 are independently selected from any one of H, substituted or unsubstituted alkenyl with 2 to 30 carbon atoms, and substituted or unsubstituted aryl with 7 to 30 carbon atoms, respectively, and at least one of Ar 1 to Ar 3 is selected from substituted or unsubstituted aryl with 7 to 30 carbon atoms;

n 1 is selected from any integer from 1 to 3;

or the organic compound is an oxyacid radical salt of the compound as shown in formula (1).

2 . The organic compound of claim 1 , wherein L is selected from acyclic alkylene with 3 to 11 carbon atoms.

3 . The organic compound of claim 1 , wherein the acyclic alkylene is linear alkylene.

4 . The organic compound of claim 1 , wherein R 1 is, at each occurrence, independently selected from any one of a phosphonic acid group, a sulfonic acid group, a carboxylic acid group, a sulfinic acid group, a boric acid group, or a silicic acid group, respectively.

5 . The organic compound of claim 1 , wherein R 1 is, at each occurrence, independently selected from any one of the following structures, respectively:

and ※ represents a linking site.

6 . The organic compound of claim 1 , wherein heteroatoms in the substituted or unsubstituted heteroaryl with 5 to 50 ring atoms are selected from at least one of N, O, and S.

7 . The organic compound of claim 1 , wherein Ar is selected from any one of formulas (A) to (C)

wherein X 1 and X 2 are independently selected from any one of a single bond, C(R 4 R 5 ), O, S, N, NR 4 , C═O, or S═O, respectively, and X 1 and X 2 are not single bonds at the same time;

Y 1 , Y 2 , and Y 3 are independently selected from any one of C(R 4 R 5 ), O, S, N, NR 4 , C═O, or S═O, respectively;

R 2 to R 5 are, at each occurrence, independently selected from any one of H, D, a halogen group, —N(R 6 ) 2 , —CONR 6 , —OCOR 6 , substituted or unsubstituted alkyl with 1 to 30 carbon atoms, substituted or unsubstituted aryl with 6 to 30 carbon atoms, and substituted or unsubstituted heteroaryl with 5 to 30 carbon atoms, respectively;

R 6 is, at each occurrence, independently selected from any one of H, D, substituted or unsubstituted alkyl with 1 to 30 carbon atoms, substituted or unsubstituted alkenyl with 2 to 30 carbon atoms, substituted or unsubstituted aryl with 6 to 30 carbon atoms, and substituted or unsubstituted heteroaryl with 5 to 30 carbon atoms, respectively;

Ar 4 and Ar 5 are independently selected from any one of H, substituted or unsubstituted aryl with 6 to 30 carbon atoms, and substituted or unsubstituted heteroaryl with 5 to 30 carbon atoms, respectively; and

n 2 and n 3 are independently selected from any integer from 1 to 4, respectively, with ※ representing a linking site.

8 . The organic compound of claim 7 , wherein X 1 and X 2 are independently selected from any one of a single bond, C(R 4 R 5 ), O, S, N, NR 4 , respectively, and X 1 and X 2 are not single bonds at the same time; and

Y 1 , Y 2 , and Y 3 are independently selected from any one of C(R 4 R 5 ), O, S, and N, respectively.

9 . The organic compound of claim 8 , wherein R 2 to R 5 are, at each occurrence, independently selected from any one of H, D, a halogen group, amino, —CONR 6 , —OCOR 6 , unsubstituted alkyl with 1 to 5 carbon atoms, halogen- or carboxy-substituted alkyl with 1 to 5 carbon atoms, unsubstituted aryl with 6 to 15 carbon atoms, halogen-substituted aryl with 6 to 15 carbon atoms, unsubstituted heteroaryl with 6 to 15 carbon atoms, and halogen-substituted heteroaryl with 5 to 15 carbon atoms, respectively; and

R 6 is, at each occurrence, independently selected from any one of H, D, substituted or unsubstituted alkyl with 1 to 5 carbon atoms, substituted or unsubstituted alkenyl with 2 to 6 carbon atoms, substituted or unsubstituted aryl with 6 to 15 carbon atoms, and substituted or unsubstituted heteroaryl with 5 to 15 carbon atoms, respectively.

10 . The organic compound of claim 7 , wherein R 4 in NR 4 is, at each occurrence, independently selected from any one of H, D, substituted or unsubstituted alkyl with 1 to 5 carbon atoms, and the following structures, respectively:

Y 4 is, at each occurrence, independently selected from CR 9 or N, respectively, and Y 4 in the same structural formula is not N at the same time;

Y 5 is, at each occurrence, independently selected from CR 9 R 10 or NR 9 , respectively;

R 9 to R 10 are, at each occurrence, independently selected from any one of H, D, substituted or unsubstituted linear alkyl with 1 to 10 carbon atoms, substituted or unsubstituted branched alkyl with 3 to 20 carbon atoms and substituted or unsubstituted cycloalkyl with 3 to 20 carbon atoms, respectively; and

※ represents a linking site with N in NR 4 .

11 . The organic compound of claim 7 , wherein Ar 4 and Ar 5 are independently selected from any one of H and the following structures, respectively:

wherein: Y 6 is selected from any one of CR 7 R 8 , O, S, S═O, and C═O;

X 3 is, at each occurrence, independently selected from CR 7 or N, respectively, and X 3 in the same structural formula is not N at the same time; and

R 7 and R 8 are, at each occurrence, independently selected from any one of H, D, substituted or unsubstituted linear alkyl with 1 to 10 carbon atoms, substituted or unsubstituted branched alkyl with 3 to 20 carbon atoms and substituted or unsubstituted cycloalkyl with 3 to 20 carbon atoms, respectively.

12 . The organic compound of claim 7 , wherein Ar is selected from any one of the following structures:

13 . The organic compound of claim 1 , wherein the oxyacid radical salt of the compound as shown in formula (1) comprises an anion and a cation, the anion is formed by at least one alcoholic hydroxyl in an oxyacid group in the compound as shown in formula (1) losing H, and the cation is selected from a metal ion or NH 4 + .

14 . A solar battery, comprising a hole transport layer and a passivation layer that are stacked, wherein components of the hole transport layer comprise a metal oxide, and the passivation layer comprises an organic compound as shown in formula (2) and/or an oxyacid radical salt of the compound as shown in formula (2):

Ar 0 -(L-R 1 )n 1    (2),

wherein Ar 0 is selected from any one of substituted or unsubstituted aryl with 6 to 50 ring atoms, substituted or unsubstituted heteroaryl with 5 to 50 ring atoms, and substituted or unsubstituted arylamino with 6 to 50 ring atoms;

L is selected from acyclic alkylene with 1 to 10 carbon atoms;

R 1 is an oxyacid group; and

n 1 is selected from any integer from 1 to 3.

15 . The solar battery of claim 14 , wherein the solar battery further comprises a perovskite layer, and the perovskite layer is located on a surface of the passivation layer away from the hole transport layer; and/or

components of the hole transport layer comprise at least one of nickel oxide and zinc oxide.

16 . The solar battery of claim 14 , wherein the passivation layer is 0.1 nm to 10 nm in thickness.

17 . An electrical apparatus, comprising a solar battery of claim 14 .