Credit: College of Design and Engineering, National University of Singapore New research into quantum materials like graphene shows that electrons can behave like viscous fluids, opening up ...

The built-in field helps guide photogenerated holes and electrons towards the graphene sheet and n-silicon, respectively. Although the efficiency of their graphene-on-silicon solar cell is ...

Graphene is among these materials, as incident light can excite electrons within it, affecting its photoconductivity. "Our research has emerged from the growing recognition that traditional models of ...

b, Electron temperature, Te, mapped onto the streamlines of electrical current flowing through the PC exposed to THz radiation. c, Schematic illustrating THz-induced heating of electrons in doped ...

an electron hole (often simply called a hole) is a quasiparticle denoting the lack of an electron at a position where one could exist in an atom or atomic lattice. Since in a normal atom or crystal ...

More information: M. Kravtsov et al, Viscous terahertz photoconductivity of hydrodynamic electrons in graphene, Nature Nanotechnology (2024). DOI: 10.1038/s41565-024-01795-y ...

We then numerically solved the equation with the boundary conditions. The energy states of the electrons in the well were obtained. The advantages of using such quantum well as a photo voltaic cell ...