MXenes are a class of two-dimensional inorganic compounds and Graphene is the thinnest material known to man at one atom thick in a general sense. The photovoltaic (PV) system — A complete set of components for converting sunlight into electricity by the photovoltaic process. The application of MXene or graphene for the PV panel is a focused area of research. In this area, such properties of these materials should be focused on such as the bandgap energy, surface area, etc. One should focus on a metal engrafted MXene or graphene to tally the PV properties that could provide a proper comparison on this topic. From my point of view, I can suggest the above. For more information, you can go through some previously reported review papers. You may have a look on:
Graphene on a dielectric is an appropriate candidate for PV cells developments. Extensive researches and grants are concentrated on Graphene reaction against waves. Usually exploiting Graphene provides a degree of freedom to adjust behavior via external gate biasing. This feature may leads to think about reconfigurable devices with numerous functionality. But According to my understanding, the most important aspect is feasibility of fabrication and economical benefits otherwise sun falls east!