How is Helium Used in the Fabrication of Nanomaterials?
Helium plays an essential role in the fabrication of nanomaterials. During the process of chemical vapor deposition (CVD), helium is often used as a carrier gas to transport precursor molecules to the substrate. Its inertness ensures that it does not react with the precursors or the substrate, allowing for the precise control of material properties. Additionally, helium's low density and high thermal conductivity help maintain uniform temperature distribution, which is crucial for the consistent growth of nanostructures.
