2021, Moiré superlattice and related Moiré Excitons in Twisted van der Waals Heterostructures, CHEM SOC REV

Moiré superlattice and related Moiré Excitons in Twisted van der Waals Heterostructures, CHEM SOC REV, 2021

Abstract: 

Recent advances in moiré superlattices and moiré excitons, such as quantum emission array, low-energy flat bands, and Mott insulator, have rapidly attracted the attention in the fields of optoelectronics, materials, and energy research. The interlayer twist turns into a degree of freedom that alters the properties of the systems of materials, and the realization of moiré excitons also offers the feasibility of making artificial exciton crystals. Moreover, moiré excitons exhibit many exciting properties under the regulation of various external conditions, including spatial polarisation, alternating dipolar, and gate-dependence; all are pertinent to the applications in nano-photonics and quantum information. But the lagging in theoretical development and the low-efficiency of the processing technologies significantly limit the potential of moiré superlattice applications. In this review, we systematically summarise and discuss the recent progresses in moiré superlattices and moiré excitons, and analyze the current challenges, and put forward relevant recommendations. There is no doubt to believe that further research will lead to breakthroughs in the application and trigger reforms and innovations in traditional solid-state physics and materials science. 

Keywords:  Moiré superlattices, Moiré excitons, artificial exciton crystals

Link: https://pubs.rsc.org/en/content/articlelanding/2021/cs/d0cs01002b#!divAbstract

Moire ́ superlattices and related moire ́ excitons in twisted van der Waals heterostructures.pdf