Long-distance relationships of particles: Electron-hole pairs in two-dimensional crystals
Researchers reveal the nature of optical excitations
07-May-2018 -
When light of specific frequency hits a semiconductor crystal, it is absorbed and produces a excitation, a state of higher energy. In solar cells, this energy can be converted into electricity and used. In two-dimensional crystals, which consist of only a few atomic layers, so called “excitons” ...
Crystals
excitons
molybdenum disulfide
+2