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. 2024 Mar 8;15:2141. doi: 10.1038/s41467-024-46183-1

Fig. 2. Microstructure and phase composition of inkjet-printed Ag2Se-based films.

Fig. 2

a XRD patterns of Ag2Se/Ag composite films annealed at 723 K. b Crystal structure of low-temperature β-Ag2Se phase. c Schematic diagram of film orientation growth. d SEM image of Ag2Se film. e SEM image of Ag2Se/15%Ag composite film. f HAADF-STEM image of the cross-section of Ag2Se film, and corresponding EDS elemental mapping, together with SAED pattern and HRTEM image. g High-resolution TEM image of Ag2Se/15%Ag composite film with the inset showing FFT images corresponding to Ag2Se grain and Ag grain. h XPS results of Ag 3d core-level spectra: h1 for Ag2Se; h2 for Ag2Se/15%Ag. i XPS results of Se 3d core-level spectra: i1 for Ag2Se; i2 for Ag2Se/15%Ag.