Semiconductors are at the heart of most electronics. We explain what semiconductors are, how they work, and just how tiny those transistors can get.

Revise conductors, semiconductors, insulators and p-n junctions for your Higher physics exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Conductors have a band gap close to 0 eV (electronvolts), semiconductors range approximately between 1 and 9 eV, and anything above is usually considered an insulator.

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 ...

A semiconductor has conductivity between a conductor and an insulator, allowing precise control of electrical current. Learn how they work and why they’re essential in modern electronics.

Conductors, semiconductors and insulators are differentiated by their band gap, which essentially measures how much energy electrons need to move freely through the material.

Conductor, Semiconductor, Insulator On the periodic table, semiconductors (also known as metalloids) crop up along a diagonal line between conductors and insulators.