Two-dimensional (2D) materials with layered structure controlled in atomically thin have been attracting increasing research interest, driven by the potential of fabricating novel nanoelectrcial, photonic, and optoelectronic devices due to their notable and extraordinary properties.

Graphene, as a single layer of carbon atoms, possesses many unique characters suitable for realizing novel and/or practical applications, for example, in solar panels, flexible and transparent transistors, supercapacitors, and so forth, with enhanced performance.

Following comprehensive research on graphene, studies on transition-metal dichalcogenides, boron nitride, and other nongraphene 2D materials with extraordinary properties are still at their early stages. Demonstrations of device fabrications are mainly made on mechanically and/or chemically exfoliated flakes. Bottom-up growth techniques, such as chemical vapor deposition (CVD), are still under development, not only for binary compounds but also for ternary alloys with enhanced capabilities of bandgap engineering.

Microscale characterization techniques such as transmission-electron microscopy, atomic force microscopy, scanning tunneling microscopy, micro-Raman scattering spectroscopy, microphotoluminescence, and X-ray photoelectron spectroscopy are also impacted accompanying the development of 2D materials and devices.

Contributions to 2D materials and their fabrications, characterizations, applications, and theoretical understandings are invited. Potential topics include, but are not limited to:

• New 2D materials and designs
• New characterization technologies
• Synthesis, exfoliation, and characterizations
• Materials processing, modification, and engineering
• Device fabrication and testing
• Theoretical understanding and explorations
• Novel concept and applications

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