Fig. 5: Residual strain of perovskite films and stability of solar cells.
From: Efficient wide-bandgap perovskite photovoltaics with homogeneous halogen-phase distribution
GIXRD patterns at different tilt angles for (a) S-2P-treated and (b) D-2P-treated perovskite films. c Linear fit of 2θ-sin2φ. d Temperature-dependent conductivity measurements of S-2P-treated and D-2P-treated perovskite films. EL spectra at various bias for (e) S-2P-treated and (f) D-2P-treated PSCs. Time-dependent PL spectra of (g) S-2P-treated and (h) D-2P-treated perovskite films. i PCE evolution curves for unencapsulated devices in N2 environment.
