	US 12,457,900 B2
	Organic compound, and electronic element and electronic device using same
Yiyi Zheng, Xi'an (CN); Xinying Liu, Xi'an (CN); and Tiantian Ma, Xi'an (CN)
Assigned to Shaanxi Lighte Optoelectronics Material Co., Ltd., Xi'an (CN)
Appl. No. 18/011,991
Filed by Shaanxi Lighte Optoelectronics Material Co., Ltd., Xi'an (CN)
PCT Filed Jul. 9, 2021, PCT No. PCT/CN2021/105554 § 371(c)(1), (2) Date Dec. 21, 2022, PCT Pub. No. WO2022/012439, PCT Pub. Date Jan. 20, 2022.
Claims priority of application No. 202010695858.X (CN), filed on Jul. 17, 2020.
Prior Publication US 2023/0217825 A1, Jul. 6, 2023
Int. Cl. H10K 85/60 (2023.01); C07D 239/26 (2006.01); C07D 251/24 (2006.01); C07D 307/94 (2006.01); C07D 333/76 (2006.01); C07D 405/04 (2006.01); C07D 405/10 (2006.01); C07D 405/14 (2006.01); C07D 409/04 (2006.01); C07D 409/10 (2006.01); C07D 409/14 (2006.01); C07F 7/08 (2006.01); C09K 11/06 (2006.01); H10K 50/12 (2023.01); H10K 85/40 (2023.01)

CPC H10K 85/6574 (2023.02) [C07D 239/26 (2013.01); C07D 251/24 (2013.01); C07D 307/94 (2013.01); C07D 333/76 (2013.01); C07D 405/04 (2013.01); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 409/04 (2013.01); C07D 409/10 (2013.01); C07D 409/14 (2013.01); C07F 7/0816 (2013.01); C09K 11/06 (2013.01); H10K 85/40 (2023.02); H10K 85/615 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1018 (2013.01); H10K 50/121 (2023.02)]

8 Claims

1. An electronic element, comprising:

an anode;

a cathode, wherein the anode and cathode are oppositely disposed; and

a functional layer disposed between the anode and the cathode, the functional layer comprising:

an electron transport layer;

an organic light-emitting layer comprising a host material and a guest material, wherein the guest material is selected from Ir(ppy)₃or Ir(piq)₂(acac); and

a hole transport layer,

wherein the host material is an organic compound consisting of a structure represented by Formula I and a structure represented by Formula II:

wherein the structure represented by Formula I is fused with one structure represented by Formula II;

* represents a site where the structure represented by Formula I is fused with the structure represented by Formula II;

a ring A is selected from a benzene ring or a naphthalene ring;

n₁represents the number of R₁, n₂represents the number of R₂, and n₃represents the number of R₃;

R₁, R₂and R₃are represented by R_k, n₁to n₃are represented by n_k, and k is a variable and represents 1, 2 or 3, wherein:

in response to determining that k is 1, n_kis selected from 0, 1, 2, 3 or 4;

in response to determining that k is 2, n_kis selected from 0, 1 or 2;

in response to determining that k is 3, n_kis selected from 0, 1, 2, 3, 4, 5, 6, 7 or 8; and

in response to determining that n_kis greater than 1, any two n_kare the same or different; and

optionally, any two adjacent R_kare connected to each other to form a benzene ring, and the formed benzene ring is optionally substituted with R′;

R₁, R₂, R₃, and R′ are the same or different, and are each independently selected from an alkyl with 1 to 5 carbon atoms or a structure represented by Formula III:

-(L)_m-Ar Formula III

m represents the number of L, and m is selected from 0, 1, 2 or 3, wherein in response to determining that m is 2 or 3, any two L are the same or different;

Ar is selected from the group consisting of:

L is selected from a single bond or the group consisting of:

and

X and Y are the same or different, and are each independently selected from a single bond, O, S, C(R₄R₅), and Si(R₆R₇), wherein X and Y are not simultaneously a single bond; and

wherein R₄to R₇are the same or different, and are each independently selected from an alkyl with 1 to 5 carbon atoms.