Abstract 2D materials are the focus of an intense research effort because of their unique
properties and their potential for revealing intriguing new phenomena. Phosphorene, a …

The polymorphism of phosphorus-based materials has garnered much research interest,
and the variable chemical bonding structures give rise to a variety of micro and …

The group-IV monochalcogenides SnS, SnSe, GeS, and GeSe form a family within the wider
group of semiconductor “phosphorene analogues.” Here, we used first-principles …

This tutorial review describes the ongoing effort to convert main-group elements of the
periodic table and their combinations into stable 2D materials, which is sometimes called …

We investigated polarization dependence of the Raman modes in black phosphorus (BP)
using five different excitation wavelengths. The crystallographic orientation was determined …

The fascinating electronic and optoelectronic properties of freestanding graphene and the
possible inclusion of novel two-dimensional (2D) systems in silicon-based electronics have …

In this article, we review the current status of Raman spectroscopy in orthorhombic black
phosphorus (BP)(for simplicity, henceforth, referred to as BP). BP is a layered semiconductor …

We study the crystal symmetry of few-layer 1T′ MoTe2 using the polarization dependence
of the second harmonic generation (SHG) and Raman scattering. Bulk 1T′ MoTe2 is known …

As a new two-dimensional layered material, black phosphorus (BP) is a very promising
material for nanoelectronics and optoelectronics. We use Raman spectroscopy and first …

Raman spectroscopy has been established as a valuable tool to study and characterize two-
dimensional (2D) systems, but it exhibits two drawbacks: a relatively weak signal response …