Semiconducting 2D materials, most notably transition metal dichalcogenides (TMDCs) and black phosphorous (BP), are a new class of materials with exceptional properties that create new vistas for both science and technology. Mono-layer (or few-layer) TMDCs and BP do not suffer from the zero-bandgap limitation of graphene. The sufficiently large bandgaps of 2D semiconductors, enhanced carrier mobility, and resistance to short channel effects make these materials very attractive for future generation of nanoelectronic devices. The direct bandgap nature of these 2D semiconductors, coupled with their mechanical flexibility and optical transparency, indicates their potential in novel electronic and opto-electronic devices. In addition, there is recent interest in building devices and functional materials based on hybrid heterostructures of different compositions to complement those from graphene. This symposium aims to serve as a scientific forum for scientists and researchers from related fields to report and discuss up to date scientific findings and technology breakthroughs.