Enhanced ionic photocurrent generation through a homogeneous graphene derivative composite membrane

We report an enhanced light-harvesting two-dimensional nanofluidic system based on homogeneous graphene derivative nanocomposite membrane, and demonstrate an enhanced proton flow upon asymmetric light illumination. The maximum photocurrent is achieved through sandwiching appropriately graphene oxide quantum dots for adjusting the interlayer spacing of the membrane and reinforcing membrane potential.