Strain and the optoelectronic properties of non-planar phosphorene monolayers
Abstract
Lattice {\em Kirigami}, ultra-light metamaterials, poly-disperse aggregates, ceramic nano-lattices, and two-dimensional (2-D) atomic materials share an inherent structural discreteness, and their material properties evolve with their shape. To exemplify the intimate relation among material properties and the local geometry, we explore the properties of phosphorene --a new 2-D atomic material-- in a conical structure, and document a decrease of the semiconducting gap that is directly linked to its non-planar shape. This geometrical effect occurs regardless of phosphorene allotrope considered, and it provides a unique optical vehicle to single out local structural defects on this 2-D material. We also classify other 2-D atomic materials in terms of their crystalline unit cells, and propose means to obtain the local geometry directly from their diverse two-dimensional structures while bypassing common descriptions of shape that are based from a parametric continuum.
Keywords
Cite
@article{arxiv.1504.07275,
title = {Strain and the optoelectronic properties of non-planar phosphorene monolayers},
author = {Mehrshad Mehboudi and Kainen Utt and Humberto Terrones and Edmund O. Harriss and Alejandro A. Pacheco SanJuan and Salvador Barraza-Lopez},
journal= {arXiv preprint arXiv:1504.07275},
year = {2015}
}
Comments
Published at PNAS (accepted on 3/31/2015, and online free of charge at www.pnas.org as of 4/27/2015.)