Excitons, a bound state of an electron and an electron hole, can form when a given material absorbs a photon above its bandgap energy. The photon excites an electron from the valence band into the ...

Weyl semimetals are topological materials whose low-energy excitations obey the Weyl equation. In a Weyl semimetal, the conduction and valence bands touch at discrete points in momentum space called ...

Many displays found in smartphones and televisions rely on thin-film transistors (TFTs) made from indium gallium zinc oxide (IGZO) to control pixels. IGZO offers high transparency due to its large ...

The bandgap, i.e. the energy gap between the highest lying valence and the lowest lying conduction band, is a defining ...

Physicists have discovered a way to store and process data in graphene that goes beyond the simple manipulation of flow and charge of electrons. In simulation studies, they have shown that a specific ...