Figure 2.

(a) IV curves and (b) transfer characteristics of a nanowire with a diameter of 50 nm after 20, 400, and 3000 s of cation exchange. All measurements were performed under ambient conditions in the dark. (c) Evolution of the specific conductivity σ, charge-carrier mobility μ_e, and charge-carrier concentration n_e as a function of cation-exchange time from CdSe (0 s) to Ag₂Se (3600 s) for three different nanowires with diameters of 50, 65, and 83 nm. The inset in the top panel shows a magnification of the first 300 s.