Lattice vibrational modes and Raman scattering spectra of strained phosphorene

被引：157

作者：

Fei, Ruixiang ^{[1
]}

Yang, Li ^{[1
]}

机构：

[1] Washington Univ, Dept Phys, St Louis, MO 63130 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 08期

基金：

美国国家科学基金会;

关键词：

BLACK PHOSPHORUS; MONOLAYER; SILICON; LAYER;

D O I：

10.1063/1.4894273

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2014 AIP Publishing LLC.

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页数：4

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