Synthetic approaches to two-dimensional transition metal dichalcogenide nanosheets

2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications

“…Because layered materials are one kind of nanomaterials, the common physical and chemical methods for preparing nanomaterials can be used to synthesize 2D layered materials. In general, they can be synthesized by two techniques: top‐down exfoliation (mechanical or solution exfoliation) and bottom‐up growth (chemical vapor deposition, pulsed laser deposition, or wet chemical method) . Using these methods, researchers synthesized a variety of layered materials.…”

“…In general, they can be synthesized by two techniques: top-down exfoliation (mechanical or solution exfoliation) and bottom-up growth (chemical vapor deposition, pulsed laser deposition, or wet chemical method). [45][46][47][48][49] Using these methods, researchers synthesized a variety of layered materials. As we know, each method has its merits and drawbacks.…”

Sodium‐Mediated Epitaxial Growth of 2D Ultrathin Sb2Se3 Flakes for Broadband Photodetection

“…Currently, most of the reported 2D Sb 2 Se 3 nanostructures are focused on solution‐based preparation methods,21–23 which are generally complicated, time‐consuming, and inevitable to use the toxic organic protecting solvents. The resultant 2D products are usually with irregular morphology, poor crystalline quality, small lateral size, and uncontrollable thickness, which severely limit the application in optoelectronics 24–26. In contrast, it is well recognized that chemical vapor deposition (CVD) is a great approach to grow high‐quality 2D single crystals with controllable morphology, size and structure 27–29.…”

“…The resultant 2D products are usually with irregular morphology, poor crystalline quality, small lateral size, and uncontrollable thickness, which severely limit the application in optoelectronics. [24][25][26] In contrast, it is well recognized that chemical vapor deposition (CVD) is a great approach to grow high-quality 2D single crystals with controllable morphology, size and structure. [27][28][29] Nevertheless, to date the successful CVD growth of 2D Sb 2 Se 3 nanostructures has not been achieved yet.…”

Graphene actively Q-switched lasers

“…There are a few other methods for TMDs synthesis, such as molecular beam epitaxy (MBE), liquid-phase exfoliation, physical vapor deposition (PVD) and ALD, as shown in Figure 3.3. [153][154][155][156] MBE is one of the first scalable methods which was developed for the growth of 2D layered materials. The principle of the operation is shown in Figure 3.3(a).…”