Metal-halide perovskites have rapidly emerged as one of the most promising materials of the
21st century, with many exciting properties and great potential for a broad range of …

Control over the dispersion of the refractive index is essential to the performance of most
modern optical systems. These range from laboratory microscopes to optical fibres and even …

The external quantum efficiency of state-of-the-art quantum dot light-emitting diodes is
limited by the low photon out-coupling efficiency. Light-emitting diodes using oriented …

One of the most nascent and universally accepted categories among the 2D materials is the
transition metal dichalcogenides (TMDs). The absence of bandgap in graphene fomented …

The isolation of graphene in 2004 from graphite was a defining moment for the “birth” of a
field: two-dimensional (2D) materials. In recent years, there has been a rapidly increasing …

The exfoliation and identification of the two-dimensional (2D) single atomic layer of carbon
have opened the opportunity to explore graphene and related 2D materials due to their …

Quantum mechanical interactions between electromagnetic radiation and matter underlie a
broad spectrum of optical phenomena. Strong light-matter interactions result in the well …

The recent emergence of two-dimensional layered materials—in particular the transition
metal dichalcogenides—provides a new laboratory for exploring the internal quantum …

Abstract 2D semiconductors such as transition metal dichalcogenides (TMDs) and black
phosphorus (BP) are currently attracting great attention due to their intrinsic bandgaps and …

Due to the recent expanding interest in two-dimensional layered materials, molybdenum
disulfide (MoS2) has been receiving much research attention. Having an ultrathin layered …