US 12,408,548 B2
Perovskite layer, fabrication method and use the same
Alex Kwan Yue Jen, Kowloon (HK); Shengfan Wu, Kowloon (HK); and Yichao Yan, Kowloon (HK)
Assigned to City University of Hong Kong, Kowloon (HK)
Filed by City University of Hong Kong, Kowloon (HK)
Filed on Nov. 1, 2023, as Appl. No. 18/499,651.
Prior Publication US 2025/0143173 A1, May 1, 2025
Int. Cl. H10K 85/60 (2023.01); C07C 211/63 (2006.01); C07C 309/44 (2006.01); H10K 30/40 (2023.01); H10K 30/57 (2023.01); H10K 85/20 (2023.01); H10K 85/50 (2023.01)
CPC H10K 85/615 (2023.02) [C07C 211/63 (2013.01); C07C 309/44 (2013.01); H10K 30/40 (2023.02); H10K 30/57 (2023.02); H10K 85/215 (2023.02); H10K 85/50 (2023.02); C07C 2603/24 (2017.05)] 39 Claims
OG exemplary drawing
 
1. A perovskite layer for use in a solar cell comprising a mixture of a mixed-halide perovskite and a sulfonyl naphthoquinone-based compound with a structure of any one of Formula (II), (III), (IV), (V), (VI), or (VII):

OG Complex Work Unit Chemistry
wherein:
R1 is independently selected from one of OM, OR4, and NR5R6, with M being a cation selected from the group consisting of H+, Na+, K+, Cs+, Rb+, Sr2+, Ca2+, Ni2+, Cu2+, Co2+, Zn2+, Mg2+, Ba2+, Li+, ammonium ion, and aminum ion;
R4, R5 and R6 are independently selected from the group consisting of hydrogen, substituted or unsubstituted C1 to C4 alkyl, substituted or unsubstituted C2 to C6 alkenyl, substituted or unsubstituted C2 to C6 alkynyl, halogen, unsubstituted C6 to C10 aryl, —CN, —C(═O)OH, —C(═O)H, —C(═O)R7, —OR7, —SH, —SR7, —NH2, —NHR6, —N(R7)2, —Si(R7)3, —OSi(R7)3, —S(O)OH and —P(O)(OH)2 where R7 is an alkyl or a phenyl, and n being 1-1000;
wherein the sulfonyl naphthoquinone-based compound does not include a porphyrin, and is arranged to suppress halide segregation in the mixed-halide perovskite.