Interfacial passivation of wide-bandgap perovskite solar cells and tandem solar cells

Abstract

Stable wide bandgap (1.698 eV) perovskite devices achieving efficiencies of 19.67%, and open circuit voltages ( V oc ) above 1.2 V, and their integration into tandem n-i-p top perovskite silicon cells with 24% PCE for.