Filtering Lithium Out of Perovskite Cells: KIER's NiOx Route to 1,000-Hour Damp-Heat Stability

KIER and UNIST use micro-sized nickel oxide to oxidise spiro-OMeTAD, capture lithium ions and filter both out. Cells reached 25.24% efficiency and kept over 95% of it after 1,000 h at 85°C and 85% RH.