The demand for computing power has been increasing exponentially since the emergence
of artificial intelligence (AI), internet of things (IoT), and machine learning (ML), where novel …

The family of two-dimensional (2D) materials composed of atomically thin layers connected
via van der Waals interactions has attracted much curiosity due to a variety of intriguing …

We report the observation of a doublet structure in the low-temperature photoluminescence
of interlayer excitons in heterostructures consisting of monolayer MoSe2 and WSe2. Both …

Hollow multishelled structures (HoMSs), an emergent solid-state material family featuring
multiple shells separated by internal cavities, are gaining intensive interest in applications …

Second-harmonic generation (SHG) is a powerful measurement technique to analyze the
symmetry properties of crystals. Mechanical strain can reduce the symmetry of a crystal and …

Janus transition metal dichalcogenides (TMDs) lose the horizontal mirror symmetry of
ordinary TMDs, leading to the emergence of additional features, such as native …

A van der Waals (vdW) heterostructure composed of multivalley systems can show excitonic
optical responses from interlayer excitons that originate from several valleys in the electronic …

Accurately described excitonic properties of transition metal dichalcogenide heterobilayers
(HBLs) are crucial to comprehend the optical response and the charge carrier dynamics of …

Abstract 2D van der Waals heterojunctions (vdWhs) are a novel type of metamaterial that are
flexible, adjustable, and easy to assemble. Using weak van der Waals forces (vdWfs) …

Excitons in monolayer transition-metal-dichalcogenides (TMDs) dominate their optical
response and exhibit strong light–matter interactions with lifetime-limited emission. While …