Buried SWCNTs Interlayer Promotes Hole Extraction and Stability in Inverted CsPbI_2.85Br_0.15 Perovskite Solar Cells.

ABSTRACT: Inverted (p-i-n) CsPbI_xBr_3-x (x = 0~3) perovskite solar cells (PSCs) are of growing interest due to their excellent thermal stability and optoelectronic performance. However, they suffer from severe energy level mismatch and significant interfacial energy losses at the bottom hole transport layers (HTLs). Herein, we propose a strategy to simultaneously enhance the crystallinity of CsPbI_2.85Br_0.15 and facilitate hole extraction at the HTL/CsPbI_2.85Br_0.15 interface by incorporating semiconducting single-walled carbon nanotubes (SWCNTs) onto [2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl] phosphonic acid (MeO-2PACz) HTL. The unique electrical properties of SWCNTs enable the MeO-2PACz/SWCNT HTL to achieve high conductivity, optimal en

SUBMITTER: Yu F 

PROVIDER: S-EPMC12430350 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature