Work

Lattice vibrational modes and Raman scattering spectra of strained phosphorene

Year: 2014

Type: article

Abstract: Strain is prominent in fabricated samples and it also serves as an exploitable tool for engineering their properties. However, quantifying strain and characterizing its spatially inhomogeneous distribution are challenging tasks. Here, we report the lattice vibrational modes and corresponding Raman spectra of strained monolayer black phosphorus (phosphorene) by first-principles simulations. We show that frequencies of vibrational modes of phosphorene and their Raman scattering peaks exhibit substantial and distinct shifts according to the types and size of strain. Combined with high spatial-resolution Raman scattering measurements, our calculated results can quantify arbitrary strain distributions in phosphorene.

Source: Applied Physics Letters

DOI: 10.1063/1.4894273

Authors: Ruixiang Fei, Li Yang

Institution: Washington University in St. Louis

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Division of Materials Research

Awards: Excited-State Properties of Electrostatically Doped Low-Dimensional Structures, G6867852708, G7467797049