Probing the coupling between the components in a graphene-mesoporous germanium nanocomposite using high-pressure Raman spectroscopy.
Denis MachonStéphanie SauzeRichard ArèsAbderraouf BoucherifPublished in: Nanoscale advances (2021)
The nature of the interface between the components of a nanocomposite is a major determining factor in the resulting properties. Using a graphene-mesoporous germanium nanocomposite with a core-shell structure as a template for complex graphene-based nanocomposites, an approach to quantify the interactions between the graphene coating and the component materials is proposed. By monitoring the pressure-induced shift of the Raman G-peak, the degree of coupling between the components, a parameter that is critical in determining the properties of a nanocomposite, can be evaluated. In addition, pressure-induced transformations are a way to tune the physical and chemical properties of materials, and this method provides an opportunity for the controlled design of nanocomposites.
Keyphrases
- carbon nanotubes
- reduced graphene oxide
- raman spectroscopy
- room temperature
- visible light
- high glucose
- diabetic rats
- gold nanoparticles
- quantum dots
- highly efficient
- mental health
- physical activity
- walled carbon nanotubes
- molecular dynamics simulations
- oxidative stress
- endothelial cells
- high resolution
- metal organic framework
- ionic liquid