Monolayer Tungsten Disulfide (WS2)
Single layer WS2 Powder and Dispersion
Product Detail
CAS No.: 12138-09-9
Tungsten disulfide, also known as WS2, belongs to the transition metal dichalcogenides (TMDs) family of materials. Like graphene, the 2-D versions of TMDs have properties that are significantly different than their bulk counterparts. Monolayer WS2 is widely studied for its unique properties that set it apart from other 2-D TMDs. Among its many exciting properties, WS2 has a tunable band gap, possesses a high on/off ratio in FETs, and demonstrates controllable spin and valley polarizations, and tunable photoluminescence. As a result, researchers around the world are exploring the use of WS2 in a variety of applications, including areas such as photovoltaics and photodetection, as well as various electronics such as sensors and transistors. In addition, WS2 has a low friction coefficient and exhibits high durability, making it an excellent dry lubricant.
At ACS Material, we manufacture high-quality nano-size monolayer tungsten disulfide and offer it as both a powder and as a dispersion in water or ethanol. It’s ideally suited for transistors, sensors, and other electronic devices. As with all our other advanced materials, you’ll be impressed with the quality and performance provided by monolayer WS2 from ACS Material. Contact us today for more information.
| Product Name | Type | Concentration | Stabilizer | Package | SKU |
|---|---|---|---|---|---|
| Monolayer Tungsten Disulfide (WS2) | Powder | - | - | 200 mg | WS2P0002 |
| - | - | 500 mg | WS2P0005 | ||
| Water Dispersion | 1mg/ml | LIOH | 200ml | GLWSW0A2 | |
| 1mg/ml | LIOH | 500ml | GLWSW0A5 | ||
| Ethanol Dispersion | 1mg/ml | LIOH | 200ml | GLWSE0A2 | |
| 1mg/ml | LIOH | 500ml | GLWSE0A5 |
1. Preparation Method
Lithium-based Intercalation Method
2. Characterizations
|
Composition: |
Monolayer Tungsten Disulfide |
|
Appearance: |
Black Powder or dispersion |
|
Diameter: |
0.1-4 μm |
|
Thickness: |
～1 nm |
|
Monolayer ratio: |
>=90% |
NOTE: Shelf life is 3 months when sealed/unopened. Please refrigerate at 4°C and keep sealed away from light. Use within 1 month after opening and store with Ar/N2 gas bubbles after each opening.
SEM Image (1) of ACS Material Monolayer Tungsten Disulfide
TEM Image (2) of ACS Material Monolayer Tungsten Disulfide
AFM Image (3) of ACS Material Monolayer Tungsten Disulfide
XRD Results (4) of ACS Material Monolayer Tungsten Disulfide
3. Application Fields
Transistor‚ sensor‚ photocatalytic‚ electronic device.
Monolayer Tungsten disulfide will be supplied as powder or dispersion‚ and it has good solubility in water and ethanol. The dispersion concentration of Monolayer Tungsten disulfide with small diameter in water will be adjustable in 0.1mg - 1 mg/ml.
If you have any questions‚ please contact us‚ and we will try our best to provide the solutions for you.
Disclaimer: ACS Material LLC believes that the information on our website is accurate and represents the best and most current information available to us. ACS Material makes no representations or warranties either express or implied, regarding the suitability of the material for any purpose or the accuracy of the information listed here. Accordingly, ACS Material will not be responsible for damages resulting from use of or reliance upon this information.
Research Citations of ACS Material Products
- Lu, Chang, et al. “Comparison of MoS2, WS2, and Graphene Oxide for DNA Adsorption and Sensing.” Langmuir, vol. 33, no. 2, May 2017, pp. 630–637., doi:10.1021/acs.langmuir.6b04502.
- Wang, Liu, et al. “Transition Metal Dichalcogenide Nanosheets for Visual Monitoring PCR Rivaling a Real-Time PCR Instrument.” ACS Applied Materials & Interfaces, vol. 10, no. 5, 2018, pp. 4409–4418., doi:10.1021/acsami.7b15746.
- Giust, Davide, et al. "Interactions of DNA coated upconversion nanoparticles with 2D materials." Colloidal Nanoparticles for Biomedical Applications XIII. Vol. 10507. International Society for Optics and Photonics, 2018.
- Lau, K. Y., A. A. Latif, MH Abu Bakar, F. D. Muhammad, M. F. Omar, and M. A. Mahdi. "Mechanically deposited tungsten disulfide saturable absorber for low-threshold Q-switched erbium-doped fiber laser." Applied Physics B 123, no. 8 (2017): 221.
- Liu, Yibo, and Juewen Liu. "Hybrid nanomaterials of WS 2 or MoS 2 nanosheets with liposomes: biointerfaces and multiplexed drug delivery." Nanoscale 9, no. 35 (2017): 13187-13194.
- Giust, Davide, María Isabel Lucío, Otto L. Muskens, and Antonios G. Kanaras. "Interactions of DNA coated upconversion nanoparticles with 2D materials." In Colloidal Nanoparticles for Biomedical Applications XIII, vol. 10507, p. 105070U. International Society for Optics and Photonics, 2018.