Highly ordered CuSbS2 nanotube arrays: Controlled synthesis and electrochemical properties

Abstract CuSbS2 nanotubes (NTs) were prepared via a hot-injection method using an anodic aluminum oxide (AAO) template, and a mixture of oleylamine (OLA) and dichlorobenzene (DB) as solvent. Structural characterization of the powder indicated formation of high purity well-aligned CuSbS2 NTs with an average diameter of 200 nm and an average wall thickness of 40 nm. Optical and electrochemical characterizations indicated that the obtained CuSbS2 NTs exhibit p-type conductivity with a suitable band gap (1.53 eV), as well as valence band (VB), and conduction band (CB) positions, comparable to conventional materials utilized in solar cell.