Alfa Chemistry focuses on two-dimensional (2D) nanomaterials technology businesses, mostly dealing with MXenes and MAX phase materials, black phosphorus, and other two-dimensional 2D nanomaterials technologies. Our research and development team is led by a group of PhDs with international experience and years of research. Our molybdenum disulfide solutions can be "personalized" to match the needs of our customers. Please contact us as soon as possible so that we can assist you in rapidly resolving your application issues.
Molybdenum Disulfide (MoS2)
MoS2 is one of the most typical layered transition TMDCs and has been extensively studied. MoS2 is one of the most typical layered transition TMDCs and has received a lot of attention. MoS2 exists in two-dimensional structures, such as nanosheets, nanoribbons or. 1 to 3 layers of MoS2 are discovered to be the thickness of 2D nanoribbons. In a variety of sectors, MoS2 has a wide range of applications. The direct band gap of monolayer MoS2 is 1.8 eV. Due to this characteristic, it will be able to compensate for gapless graphene's weaknesses, allowing 2D materials to be used in next-generation switching and optoelectronic devices.
Fig 1. Chemical structure of two layers of MoS2. (Li X, et al. 2015)
MoS2 Solution Synthesis and Characterization
Alfa Chemistry provides customized MoS2 nanoflakes solutions. We use exfoliation chemistry to synthesize MoS2 solutions by sonicating high quality crystals of bulk MoS2, which can be easily dispersed in a range of different polar solvents. Depending on your needs, we may create single-layer, few-layer, multi-layer, or even bulk-layered solutions. Please get in touch with us to figure out which solution you prefer.
- Ion Intercalation - Lithium embedding of bulk MoS2 can be achieved through an electrochemical lithiation discharge process. After further sonication, high yields of MoS2 monolayers are obtained. This process is used to produce a substantial percentage of metal 1T-MoS2.
- Solvent-based exfoliation - Exfoliating suspended bulk MoS2 flakes in organic solvents yielded the majority of the semiconducting 2H-MoS2. The method was further optimized by carefully controlling the sonication time.
Custom solutions are stable in ambient settings and may be simply applied to generate a thin film coating on any substrate or surface. Thin films put on various substrates will emit light depending on the thickness of the layer. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), electron energy dispersive spectroscopy (EDAX), Raman spectroscopy, and radio photoelectron spectroscopy have all been used to corroborate the various characterizations of MoS2 nanomaterials (XPS). If you have any questions, please contact us and we will do everything we can to help you.
Fig 2. Electrochemical lithiation process for the fabrication of 2D nanosheets from the layered bulk material. (Radisavljevic B, et al. 2011)
Note
We ship supersaturated 2D solutions to save money on shipping (concentration depends specifically on the type of 2D layer). Once the supersaturated solution is in the hands of the customer, it is diluted into a bulk solution, and the 2D layers are deposited into the selected substrate using a simple and cost-effective rotary casting technique. Because of its environmental stability, thermal stability, dispersion properties, and non-polluting nature, we propose ethanol as a dispersant solvent. Please contact us if your research necessitates the use of different solvents.
References
- Li X, et al. (2015). "Two-Dimensional MoS2: Properties, Preparation, and Spplications." Journal of Materiomics. 1(1): 33-44.
- Radisavljevic B, et al. (2011). "Single-Layer MoS2 Transistors." Nat Nanotechnol. 6: 147-150.
Please kindly note that our products are for research use only.
