Silicon is the best-known semiconductor material. However, controlled nanostructuring drastically alters the material's ...

Techniques for Band Gap Engineering vary, including doping, the introduction of impurities into a semiconductor to alter its electrical properties; strain engineering, where stress is applied to ...

In semiconductor ... gap. Electrons in lower energy levels can be excited to higher energy levels through thermal or photoelectric excitations, leaving behind a positively charged hole in the valence ...