Co-Self-Assembled Interface Engineering Assisted for Bend-Resistant and Efficient Flexible Perovskite Solar Cells.

ABSTRACT: Flexible perovskite solar cells (F-PSCs) have attracted considerable interest for their superior mechanical flexibility. Nonetheless, cryptic bottom-interface defects hinder further improvements in device performance. Here, a co-self-assembled monolayer (Co-SAM) engineering strategy is implemented by integrating 4-nitrophenyl phosphate (PNPP) into [4-(3,6-dimethyl-9H-carbazol-9-yl) butyl] phosphonic acid (Me-4PACz) to improve the NiO_x/perovskite (PVK) interface. This technique enhanced the surface uniformity and hydrophilic nature of the NiO_x/Me-4PACz, while promoting favorable growth of PVK crystal orientation. Furthermore, the PNPP effectively mitigates the generation of defects at the NiO_x surface and the underlying PVK, ultimately significantly improvin

SUBMITTER: Wang C 

PROVIDER: S-EPMC12806289 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature