US 12,264,253 B2
Perovskite ink for scalable fabrication of efficient and stable perovskite modules
Jinsong Huang, Chapel Hill, NC (US); and Yehao Deng, Chapel Hill, NC (US)
Assigned to The University of North Carolina at Chapel Hill, Chapel Hill, NC (US)
Appl. No. 18/019,385
Filed by The University of North Carolina at Chapel Hill, Chapel Hill, NC (US)
PCT Filed Aug. 3, 2021, PCT No. PCT/US2021/044380
§ 371(c)(1), (2) Date Feb. 2, 2023,
PCT Pub. No. WO2022/031728, PCT Pub. Date Feb. 10, 2022.
Claims priority of provisional application 63/060,451, filed on Aug. 3, 2020.
Prior Publication US 2023/0340288 A1, Oct. 26, 2023
Int. Cl. H10K 85/50 (2023.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/52 (2014.01); H01G 9/20 (2006.01); H10K 30/40 (2023.01)
CPC C09D 11/52 (2013.01) [C09D 11/033 (2013.01); C09D 11/037 (2013.01); H01G 9/2068 (2013.01); H10K 85/50 (2023.02); H10K 30/40 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A perovskite ink solution comprising:
a) a first composition of formula FA1-xCsxBX3,
wherein,
FA is formamidinium;
x is between 0 and 1;
B is at least one metal cation;
b) a second composition of CsX, FAX, REX3, or REX2;
wherein X, in each instance, is at least one halide; and
RE is a rare earth ion;
and;
c) two or more solvents selected from the group consisting of dimethyl sulfoxide, dimethylformamide, N,N-dimethylpropyleneurea, N-methyl-2-pyrrolidone, dimethylacetamide, formamide, γ-butyrolactone, 2-methoxyethanol, and acetonitrile.