Fig. 4: Electronic structures of ASWs.
From: Stable single atomic silver wires assembling into a circuitry-connectable nanoarray

a XANES spectra of ASWs and two references at the Ag L3-edge. Red and blue shades represent the edge peaks of ASWs and Ag2SO4, respectively. b The change of Ag L1-edge energy (∆E0) versus average oxidation state. The Ag metal edge energy is selected as the reference energy, i.e., ∆E0 = 0 eV. Data of binary silver oxides containing Ag in formal oxidation states of +0.8, +1, +2.67, and +3 were obtained from reference 31. Inset: Schematic illustration of the 4d–5s hybridization or overlapping among Ag atoms of ASWs leading to the 5s bonding orbitals shifting down below the 4d anti-bonding orbitals15.