Synthesis and electrical transport properties of single-crystal antimony sulfide nanowires

Single-crystal Sb2S3 nanowires were synthesized at a large scale by a facile organic molecule-assisted hydrothermal method. Such nanowires prefer to grow along the [00 1] direction. The as-prepared individual Sb2S3 nanowire exhibits nonlinear current-voltage (I-V) characteristics, indicating its potential applications in electronic nanodevices. The dominant conduction mechanism was studied and proposed to be different under different ranges of electric field strengths, which was an ohmic mechanism at an electric field lower than 400 V/cm, Schottky emission at an electric field between 400 and 1200 V/cm, and a space charge limited conduction at an electric field higher than 1200 V/cm, respectively.