US 12,284,858 B2
Flexible perovskite solar cells and fabrication thereof
Zonglong Zhu, Kowloon (HK); Danpeng Gao, Kowloon (HK); and Bo Li, Kowloon (HK)
Assigned to City University of Hong Kong, Kowloon (HK)
Filed by City University of Hong Kong, Kowloon (HK)
Filed on May 30, 2023, as Appl. No. 18/203,394.
Prior Publication US 2024/0407183 A1, Dec. 5, 2024
Int. Cl. H10K 30/00 (2023.01); H01G 9/00 (2006.01); H01G 9/20 (2006.01); H10K 30/50 (2023.01); H10K 85/50 (2023.01); H10K 71/12 (2023.01)
CPC H10K 30/50 (2023.02) [H01G 9/0029 (2013.01); H01G 9/2095 (2013.01); H10K 85/50 (2023.02); H10K 71/12 (2023.02)] 20 Claims
OG exemplary drawing
 
10. A method of preparing an inverted perovskite solar cell comprising the steps of:
providing a flexible substrate layer;
providing a transparent electrode on the flexible substrate layer;
coating a hole transport layer onto the substrate layer;
coating a perovskite layer;
coating an electron transport layer onto the perovskite layer;
coating a metal electrode on the electron transport layer;
wherein, an interface modification layer is coated onto the hole transport layer, prior to coating the perovskite layer, or is coated on both sides of the perovskite layer; and
wherein the interface modification layer comprises at least one ammonium acetate, wherein the at least one ammonium acetate comprises pentylammonium acetate.