Two-dimensional functional materials: from properties to potential applications

Abstract

Two-dimensional (2D) materials have been extensively investigated since the exfoliation of graphene. Due to the excellent and versatile properties, the promising applications in novel nanodevices have been proposed in the last few years. Here, we chose three stable 2D materials which have been experimentally synthesized and have potential to be used for next-generation nanodevices, namely semiconducting MoS 2 , Janus MoSSe, and magnetic CrI 3 , to review their electronic/ magnetic properties, and reveal the relationship of the propertiesapplications in devices. The showcase review on property-application is expected to provide new research insights into the investigations of 2D materials.

Growth of two-dimensional Janus MoSSe by a single in situ process without initial or follow-up treatments

“…The transition metal layer of Janus 2D TMDCs is sandwiched by two different chalcogen layers, resulting in broken mirror symmetry along the out-of-plane direction, which distinguishes Janus 2D TMDCs from pristine TMDCs. This unique characteristic of 2D Janus TMDCs leads to their novel phenomena, such as Rashba spin splitting, piezoelectric polarization, second-harmonic generation, catalytic effects, and long carrier recombination [1][2][3][4][5][6][7] , which are very promising for their application in sensors, actuators, piezo/thermal-electric devices, solar cells, ion batteries, and other electromechanical devices [8][9][10][11] . The asymmetry of Janus TMDCs has also been used to tailor the van der Waals (vdW) interlayer coupling and charge transfer in vdW heterostructures [12][13][14][15] ; such tailoring of Janus MoSSe/MoS 2 heterobilayers was performed by tuning the twist angle and interface composition 16 .…”

Pseudo 2-dimensional nanostructures of metal oxides for high-performance supercapacitors

“…[1][2][3] These can have fascinating semiconducting properties owing to modulated confinement, optical properties because of significant change in the band structures, electrical or electrochemical properties associated with their surface states and enhanced accessible active sites. 2,[4][5][6] The interest in 2-D nanostructures was initiated by the fascinating world of graphene. Novel alternatives to graphene such as MXenes are taking the interest in 2-D nanostructures to the next level.…”

К Модельному Описанию Электронного Спектра Графеноподобных Янус-Структур

“…Большое внимание уделяется Янус-структурам на основе дихалькагенидов переходных металлов [7,8]. Особое место занимают исследования магнитных состояний в Янусструктурах [4,9,10].…”