We show here that the argument presented by Rotenberg et al. in the preceding comment to account for the energy gap reported by us 1 in epitaxial graphene on 6H-SiC is unfounded. In our view ...

They then used a narrow-bandgap organic active layer ... including portable energy, building-integrated photovoltaics, and indoor photovoltaics, per Interesting Engineering.

Energy is lost during this process. The power transistor needs to be efficient. The present technology based on silicon has reached its limits. Emerging ultra-wide bandgap semiconductor gallium oxide ...

“However, the efficiency of Se solar cells has been stagnated for a long time owing to the suboptimal bandgap (> 1.8 eV) and the lack of a proper electron transport layer.” The researchers ...