Improving the Conductivity of Amide-Based Small Molecules through Enhanced Molecular Packing and Their Application as Hole Transport Mediators in Perovskite Solar Cells.

ABSTRACT: Organic-inorganic hybrid halide perovskite solar cells (PSCs) have attracted substantial attention from the photovoltaic research community, with the power conversion efficiency (PCE) already exceeding 26%. Current state-of-the-art devices rely on Spiro-OMeTAD as the hole-transporting material (HTM); however, Spiro-OMeTAD is costly due to its complicated synthesis and expensive product purification, while its low conductivity ultimately limits the achievable device efficiency. In this work, we build upon our recently introduced family of low-cost amide-based small molecules and introduce a molecule (termed TPABT) that results in high conductivity values (∼10^-5 S cm^-1 upon addition of standard ionic additives), outperforming our previous amide-based material (EDOT-Amid

SUBMITTER: Alkhudhayr EAA 

PROVIDER: S-EPMC10685326 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature