Electrical conductivity of single CdS nanowire synthesized by aqueous chemical growth

In this Letter, we report on the temperature-dependent conductivity and current-voltage curve of a single CdS nanowire, which was synthesized by a simple aqueous chemical growth method. A pair of platinum microleads was fabricated on the single CdS nanowire by focused ion-beam deposition. The room-temperature conductivity and the band gap of the single CdS wire are 0.82Ω−1cm−1 and 0.055eV, respectively. When the applied electric field is larger than 1090Vcm−1, the CdS nanowire shows a nonlinear I-V curve at room temperature.