US 12,457,897 B2
Receptor material, synthesis method and use thereof
Xingzhu Wang, Guangdong (CN); Zhixin Liu, Guangdong (CN); and Baomin Xu, Guangdong (CN)
Assigned to SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY, Shenzhen (CN)
Filed by SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY, Guangdong (CN)
Filed on Apr. 1, 2024, as Appl. No. 18/623,301.
Claims priority of application No. 202310324472.1 (CN), filed on Mar. 30, 2023.
Prior Publication US 2024/0334824 A1, Oct. 3, 2024
Int. Cl. H10K 85/60 (2023.01); C07D 495/22 (2006.01); H10K 30/50 (2023.01)
CPC H10K 85/657 (2023.02) [C07D 495/22 (2013.01); H10K 85/626 (2023.02); H10K 30/50 (2023.02)] 3 Claims
OG exemplary drawing
 
1. A preparation method of an organic photovoltaic cell, comprising sequentially arranging a first electrode, a hole transport layer, an active layer, an electron transport layer and a second electrode on a substrate;
wherein the organic photovoltaic cell comprises the first electrode, the hole transport layer, the active layer, the electron transport layer and the second electrode stacked in sequence;
wherein the active layer comprises a donor PM6, a receptor material and a receptor L8-BO, and the donor PM6 and the receptor L8-BO have structure formulas shown as below:

OG Complex Work Unit Chemistry
wherein the receptor material comprises a structure formula shown as below;

OG Complex Work Unit Chemistry
wherein:
R is a halogen atom;
R1-1 and R1-2 are one of C2-C4 alkyl group;
R2 is C10-C12 alkyl group;
a mass ratio of the donor PM6 to the receptor material is 1:0.1 to 1:0.3;
a mass ratio of the donor PM6 to the receptor L8-BO is 1:1.2 to 1:1.6;
the active layer has a thickness of 80-120 nm; and
the organic photovoltaic cell has an area of about 25 cm2.