Fig. 2: Stability of the buried interface.
From: Mercapto-functionalized scaffold improves perovskite buried interfaces for tandem photovoltaics

a VI migration energy barriers in the control and butanethiol systems interacting with Pb(II) and Sn(II) in the perovskite lattice. Temperature-dependent dark conductivity results of (b) control, (c) MSN, and (d) MSN-SH perovskite films. e Absorbance spectra of toluene solutions in which the perovskite films deposited on ITO, PEDOT:PSS, PEDOT:PSS/MSN or PEDOT:PSS/MSN-SH substrates aged at 85 °C for 48 h. XPS spectra of Sn 3d core levels performed on the peeled surface of the control and MSN-SH films (f) before and (g) after simulated AM1.5G illumination for 240 h under N2. Source data are provided as a Source Data file.