Fig. 2: Basic characterizations of AgBDT (BDT = 1,4-benzenedithiol) nanosheets.
From: Organic-inorganic hybrid covalent superlattice for temperature-compensated ratiometric gas sensing
a The packing structure of AgBDT covalently connected by the organic layer (left) and 2D {AgS}n inorganic layer (right) (hydrogen atoms are omitted for clarity). b X-ray photoelectron spectroscopy (XPS) spectra of Ag 3d and c S 2p for AgBDT. d Powder X-ray diffraction (PXRD) pattern. e Ultraviolet-Visible Spectroscopy (UV-vis) absorbance spectrum. Inset is the corresponding Tauc plot of UV–vis absorbance spectrum. f Ultraviolet photoelectron spectroscopy (UPS). Inset are the secondary electron cut off edge measured with He I (hν = 21.22 eV) and valence band of AgBDT with respect to the Fermi level (EF = 0). g Calculated band structure and projected density of states (PDOS). h Temperature-dependent I–V curves. Inset is the relationship between conductivity and temperature. i Arrhenius plots of conductivity. Source data are provided as a Source Data file.
