2D transition metal dichalcogenide nanomaterials: advances, opportunities, and challenges in multi-functional polymer nanocomposites

Abstract

The functionalized TMD nanolayers have the potential to introduce multi-functionalities into polymer matrices, thus leading to the development of high-performance multi-functional composites/nanocomposites.

Novel Two-Dimensional Layered MoSi2Z4 (Z = P, As): New Promising Optoelectronic Materials

“…As a typical representative, graphene has been widely expected to be a proper material for the preparation of a new generation of nanoelectronic devices due to remarkable high carrier mobility, but its zero bandgap reminds us that it may not be an effective solution [1,10,11]. Transition metal dichalcogenides (TMDCs) possess tunable bandgap, but its comparatively low carrier mobilities is a not neglectable obstacle for practical applications [3,[12][13][14]. For example, the carrier mobility of MoS 2 is roughly 72 cm 2 V −1 s −1 for electron and 200 cm 2 V −1 s −1 for hole, which are roughly four to six orders of magnitude smaller than graphene and even much lower than those of low-doped Si (1350 cm 2 V −1 s −1 for electron and 480 cm 2 V −1 s −1 for hole).…”

Strong reinforcement effects in 2D cellulose nanofibril–graphene oxide (CNF–GO) nanocomposites due to GO-induced CNF ordering

“…Polymer nanocomposites based on graphene [1][2][3] or other twodimensional platelets 4 are of great interest, since they can combine load-bearing structural aspects with functionalities required in energy storage, [5][6][7][8] sensors, 9,10 photovoltaics, 11,12 organic electronics, 13,14 biomedical devices 15,16 etc., but also in membranes, 17,18 lms 19,20 and coatings. 21,22 The polymer matrix facilitates processing and shaping; it imparts complex combinations of exibility, modulus, strength and toughness, and can provide improved chemical stability and gas barrier properties.…”

The WS2 dependence on the elasticity and optical band gap energies of swollen PAAm composites

“…Graphene and transition metal dichalcogenides which are called two-dimensional (2 D) materials have attracted tremendous attention in the fields of energy storage, electronics, catalysis, optical device, electrochemical and biosensor. 1–5 They have attracted interest for potential use in advanced applications such as photo voltaic and photo catalysis because of tunable optical band gaps depending on size. The bulk form of MoS 2 and WS 2 is semi-conducting materials which have indirect optical band gap with band gaps of 1.22 eV and 1.20 eV, respectively.…”