Theoretical predictions have lead to the experimental synthesis of new low dimensional layered structures. Herein we show for the very first time that compounds of carbon monosulfide exhibit a great variety of layered nanostructures, such as chains arrays, monolayers, and thin films. We find that the chains arrays are the most stable because they are mainly dimensionality-driven by the sp2 hybridization of sulfur and carbon orbitals. Furthermore, the chains arrays are direct gap semiconductors. In contrast to thin films, the monolayers are stable at room temperature with a semiconductor phase followed in energy by a metallic phase. Then, we achieve a semiconductor-to-metal phase transition in carbon sulfur monolayers, which can be driven by strain engineering controlling conductivity and carrier mobility.
@article{arxiv.1703.02756,
title = {Carbon Monosulfide Nanostructures: Chains Arrays, Monolayers, and Thin Films},
author = {Tomás Alonso-Lanza and Faustino Aguilera-Granja and Jhon W. González and Andrés Ayuela},
journal= {arXiv preprint arXiv:1703.02756},
year = {2017}
}