About the book
Surface sciences elucidate the basic aspects of physics and chemistry at a wide range of surfaces/interfaces of arbitrary objects. Nowadays, one of the emerging edges of surface sciences lies in micro-nano surface/interface structures of low-dimensional (0D, 1D, 2D) materials that are receiving huge interests since their important breakthroughs. Among them, CVD graphene, graphene oxide, flourographene, 2D chalcogenides (MoS2, WS2, MoSe2, WSe2), semiconducting dichalcogenides (MoTe2, WTe2, ZrS2, ZrSe2, etc.), metallic dichalcogenides (NbSe2, NbS2, TaS2, TiS2, NiSe2, etc.), layered semiconductors (GaSe, GaTe, InSe, Bi2Se3, etc.), layered Cu oxides, black phosphorous, hexagonal-boron nitride (h-BN), hafnium dioxide (HfO2), and 2D carbide nanosheets (MXene), silicene, etc. emerge as representative materials for ""nanoscience and technology era of the 21st century"" with intriguing characteristics in electronics and optoelectronics. Unlike conductive graphene with gapless band structure, other materials above present different energy band-gap. The controlled tuning of band-gap of these materials through synthesis, surface treatments (e.g. doping, cleaning), layer-by-layer thinning covered in the scopes of chemistry, physic, biology, nanotechnology, and engineering. The controlled band-gap of 2D materials as high-quality large-scale monolayers with a smooth and clean surface and without ad-bilayers would be raising up the current on-off ratio, photoluminescence, and other unexploited and unexplored exotic properties. The electronic properties of low-dimensional materials are strongly dependent on their thicknesses. For instance, the thickness modulating of MoS2 layers will activate the optical energy gap which makes it promising for optoelectronic applications such as photodetectors, photovoltaics, light emitters, phototransistors. The progress in synthesis or layer-by-layer thinned modification techniques on 2D materials has significantly achieved through adjusting the etching rates (chemical and physical plasma engineering) or gas molecular ratios and temperatures (chemical vapor deposition synthesis) and still going on. Synthesized- and/or layer-by-layer controlled monolayers could unlock and take a leap forward in developing high-performance electronics and could be applied for other TMDs and low-dimensional materials. Here, we will present the latest advances in the surface science field in terms of low-dimensional materials from the aspects of the high-quality synthesis to pre-/post- micro-nano surface modifications with diminished/dissipated defects. In addition, the related applications will be addressed as well.