Researchers from the University of Louisville and National Renewable Energy Laboratory (NREL) have reported high-performance, inverted f-PSCs from the direct deposition of yttrium-doped SnO2 nanoparticles functionalized with acetate on top of perovskite as an ink in anhydrous ethanol via blade coating.
Yttrium doping reportedly improved device performance by improving the charge extraction with a decreased series resistance leading to improvements in the open-circuit voltage and fill factor.
The champion power conversion efficiency for 0.1 cm2 devices increased from 14.3% for undoped SnO2 to 16.5% with 2% Y:SnO2 doping, which is unprecedented for f-PSCs on ITO-PET substrates employing SnO2 as an ETL.
Source:
Posted: May 25,2023 by Roni Peleg
