Molybdenum Disulfide (MoS2) Pristine Flakes in Solution, 100 ML
MoS2 Pristine Flakes are nanoscale crystals dispersed in ethanol/water solution. If separated from the solution, nano-MoS2 forms emerald-green crystals that look different from the silver-black crystals of bulk MoS2.
Lateral Size: 100-400 nm
Thickness: 1-8 monolayers
Purity in dry phase: >99%
Solution Concentration: 18 mg/L
Solution is stable under ambient conditions
SEM image of an Individual flake
UV-Visible Absorption Spectrum
Each Mo(IV) center of MoS2 is occupying a trigonal prismatic coordination sphere, which is bound to six sulfide ligands. The sulfur center is connected to three Molybdenum centers, which are pyramidal. The trigonal prisms are layered, sandwiching molybdenum atoms between layers of sulfur atoms.
Depiction of MoS2 Crystal Structure1
MoS2 in its monolayer form has recently been under particular recognition for its intriguing electrical and optical properties. Bulk MoS2 is generally an n-type semiconductor with an indirect bandgap (~1.3 eV) and a carrier mobility in the range of 50-200 cm2 V-1s-1 at room temperature. On the other hand, monolayer MoS2 has a direct bandgap of ~1.8 eV, and can be useful in low-power switching devices.
MoS2 Raman Spectrum
AFM Image of an MoS2 Flake on SiO2
Preparation Method: Solution-Based Exfoliation
Thin Semiconducting Films
This solution can be easily deposited onto a substrate or surface of your choice to form a thin film coating.
SEM Image of an MoS2 Thin Film on SiO2
We can do custom formulations, and fill orders for large volumes of the solution! Contact us for more details.
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These materials have been used in publications, including:
Layered memristive and memcapacitive switches for printable electronics, Bessonov et al. Nature Materials.
High-mobility and Low-Power Thin-Film Transistors Based on Multilayer MoS2 Crystals
Single-Layer MoS2 Transistors, Radisavljevic et al., Nature Nanotechnology, 2011, 6 (March). pp 447-500
Stretching and Breaking of Ultrathin MoS2, Bertolazzi et al., ACS Nano, 2011 (12), 5. 9703-9709
1Adapted from the Wikimedia Commons file Molybdenite-3D-balls.png
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