Electronic Spectra of Semiconductor Nanocystals

In recent years, techniques have been developed to prepare highly monodisperse and crystalline particles of many common semiconductors in the nanometer size regime. These particles, Consisting of a hundred to tens of thousands of atoms, exhibit electronic spectra that evolve in interesting ways with size. Recent experiments on electric field modulation of absorption and emission, resonance Raman scattering and photon echoes will be presented, with a view towards presenting a unified picture of the electronic spectra in these materials.