High performance polymerized small molecule acceptor by synergistic optimization on π-bridge linker and side chain

PaperPaios
Written By Fluxim AG

Sun, G., Jiang, X., Li, X. et al.

Nat Commun 13, 5267 (2022).

https://doi.org/10.1038/s41467-022-32964-z

Polymeric small molecule acceptors (PSMAs) are narrow bandgap small-molecule acceptors (SMAs) copolymerized with a π-bridge linking unit (linker). A power conversion efficiency of 17.24% was reached recently at the Beijing National Laboratory of Molecular Sciences by testing three PY-IT derivatives. PG-IT2F was the champion polymer with lower recombination and improved charge transport.

And FLUXiM AG tools are supporting their research. With Paios they performed light-dependent transient photovoltage (TPV) measurements and estimated a charge lifetime of 0.769 us on PG-IT2F-based solar cells compared to 0.436 us for the reference PY-IT PVs.

Fluxim AG
Previous

Multilayer Capacitances: How Selective Contacts Affect Capacitance Measurements of Perovskite Solar Cells
Next

Dual-site passivation of tin-related defects enabling efficient lead-free tin perovskite solar cells