Abstract:

Its most common form, 2H-MoS₂ is a semiconductor. However, for applications in batteries, supercapacitors, and solar cells, a substantially increased conductivity is needed to achieve reasonable currents. Using 2H-MoS₂ requires a relatively high voltage to get sufficient conductivity due to the presence of a band gap. The most common conductive form of MoS₂ is metallic MoS₂ (1T-MoS₂) that has been prepared via the lithium intercalation process, which involves inert atmosphere processing and elaborate safety procedures. Also, this procedure takes place at very high temperatures for more than two days. Using the lithium intercalation process to exfoliate the conductive MoS₂ is not only harmful for the environment but also expensive. Recently, one research group reported a synthesis procedure of conductive MoS₂ using a different hydrothermal process. Again, this process needs sophisticated instrumentation and high heat. McMaster’s patented process introduces an elegant, reproducible and tuneable method for enhancing the conductivity of 2H-MoS₂.

Results confirm the feasibility of this novel manufacturing technique. It is safer, cheaper and faster than any other known method.

Applications:

• Batteries and supercapacitors
• Chemiresistive sensors
• Conductive films
• Solar cells

Advantages:

• Safer process for workers that does not require high heat, large energy inputs, or hazardous chemicals
• More cost-effective because it requires only standard equipment with minimal energy consumption
• Suitable for large-scale production as it rapidly achieves tunable and enhanced conductivity