On the periodic table, semiconductors (also known as metalloids) crop up along a diagonal line between conductors and insulators. Noble gases such as helium and neon are poor conductors of ...

Revise conductors, semiconductors, insulators and p-n junctions for your Higher physics exam with Bitesize Scotland interactive ... giving electrons enough energy to enter the conduction band ...

A material’s band gap describes the energy difference between that material’s valence and conduction bands. An insulator will have a large band gap, making it impossible for electrons to circulate by ...

Duration: 4 hours. In this module on metal-semiconductor contacts, we will cover the following topics: Device structure, Equilibrium energy band diagram, Electrostatic analysis, Energy band diagram ...

Insulators have a wide band gap that is difficult for electrons to cross without absorbing a great deal of energy, if they can cross it at all. By contrast, conductors have a band gap that is ...