Adhesion properties of 2D materials

Over the past few years, many researchers have been excited with the advent of two-dimensional (2D) materials such as graphene and molybdenum disulfide (MoS₂) because of their intriguing physical and chemical properties. Furthermore, they have great potential in various applications including nanoelectronics, flexible or stretchable devices, energy conversion or storage devices, sensors, nanocomposites, and others. In addition to their electrical, mechanical, optical, and thermal properties, interfacial properties of 2D materials such as adhesion energy have recently attracted attention from researchers since interfacial interactions of 2D materials with others are of great importance in obtaining mechanical integrity of nanomanufacturing processes and related devices. In this respect, this paper reviews the adhesion properties of 2D materials. Measurement methods and characteristics of adhesion behaviors were summarized and discussed mainly for graphene and MoS₂.