Journal: Nature Communications
Article Title: Symmetry-breaking co-assembly of conjugated molecules boosts perovskite photovoltaics
doi: 10.1038/s41467-026-76848-y
Figure Lengend Snippet: SEM images of the top surface ( a ) and the buried interface ( b ) of MeO and MeO-DTCA-based perovskite films; scale bar: 1 μm. c Fluorescence lifetime imaging microscopy (FLIM) mapping of MeO/perovskite and MeO-DTCA/perovskite samples; scale bar: 3 μm. In-situ UV-vis spectra of perovskite films deposited on the MeO ( d ) and MeO-DTCA ( e ) surfaces measured during the annealing process. The white dashed lines mark the wavelength where the films reach 80% of the maximum absorbance. f Energy levels of MeO, MeO-DTCA, DTCA, PCBM, and perovskite. The MeO-DTCA energy level of −5.18 eV is achieved at a molar ratio of 4:1.
Article Snippet: Top-view and cross-sectional scanning electron microscopy (SEM) images were obtained using a field emission SEM (Tescan MIRA).
Techniques: Fluorescence, Imaging, Microscopy, In Situ