  In this work, \b{eta}-phosphorus carbide 1D nano-wires (PCNWs) are
investigated in the framework of density functional theory. The dynamical
stability of the considered \b{eta}-PCNWs at 300 K is verified using ab initio
molecular dynamics calculations. According to the results on the band structure
calculations, \b{eta}-PCNWs can be semiconductors, semimetals or metals
depending on their size and form. Thus, owning to their unique shape and high
tunability of electronic properties \b{eta}-PCNWs may be used in optical and
photovoltaic nanodevices.
