Growth and applications of two-dimensional single crystals

Abstract

Two-dimensional (2D) materials have received extensive research attentions over the past two decades due to their intriguing physical properties (such as the ultrahigh mobility and strong light-matter interaction at atomic thickness) and a broad range of potential applications (especially in the fields of electronics and optoelectronics). The growth of single-crystal 2D materials is the prerequisite to realize 2D-based high-performance applications. In this review, we aim to provide an in-depth analysis of the state-of-the-art technology for the growth and applications of 2D materials, with particular emphasis on single crystals. We first summarize the major growth strategies for monolayer 2D single crystals. Following that, we discuss the growth of multilayer single crystals, including the control of thickness, stacking sequence, and heterostructure composition. Then we highlight the exploration of 2D single crystals in electronic and optoelectronic devices. Finally, a perspective is given to outline the research opportunities and the remaining challenges in this field.

Topological line defects in hexagonal SiC monolayer

“…Two-dimensional materials (2D) have been thoroughly explored over the last two decades due to their outstanding and tunable mechanical, thermal, magnetic, and electronic properties, which are typically rather different from those seen in their bulk counterparts. 1–3 Motivated by the synthesis of graphene in 2004, 4 a new field in science has emerged and a novel class of 2D materials based nanodevices has been proposed with a broad range of potential applications, including optoelectronic devices, 5–8 energy conversion, 9–11 gas sensing, 12–18 biosensing, 19–22 spintronics, 23–28 among others. In special, semiconductors composed of III–IV elements, such as gallium nitride (GaN), boron nitride (BN), and silicon carbide (SiC), have received a lot of attention because of the high-temperature device's application.…”

DFT studies of 2D materials inspired by Lie algebras

“…In connection with the development of new materials, several studies have been elaborated in order to investigate the physical properties of two dimensional (2D) materials [28][29][30][31][32][33][34][35][36][37][38][39]. The extensively dealt with one is graphene, using a variety of computational methods with suitable approximations.…”

Resistive Switching in Bigraphene/Diamane Nanostructures Formed on a La3Ga5SiO14 Substrate Using Electron Beam Irradiation

“…Two-dimensional materials represent a novel class of nanostructured materials that hold great promise as emerging materials for ultra-thin semiconductor devices in the future [4]. This family of materials encompasses a wide range of options, including metals and insulators, offering a rich collection of nanostructured 2D materials that can be utilized for designing diverse devices [5][6][7]. In the present era, 2D materials have gained significant attention due to their unique properties, which arise from their low-dimensional nature and distinctive physical and chemical characteristics [8].…”