ABSTRACT

The discovery of graphene has attracted extensive research interest in 2D materials since 2D materials have shown many extraordinary properties different from bulk materials, which are promising for the applications in many areas including energy materials, sensors, and spintronics. Transition metal dichalcogenide (TMDC), one of the 2D materials, which has relatively large bandgap, strong spin-orbit coupling, and moderate mobility, is one of the major focuses in the research of 2D materials. In this chapter, we will introduce the basics of 2D and TMDC materials. We mainly give an introduction of the syntheses and characterizations of TMDCs with different approaches and techniques. In the last part of this chapter, we introduce the applications of TMDCs in the area of energy materials (hydrogen evolution, lithium batteries, and supercapacitors), bioapplications, nanodives, spintronics, and valleytronics.