Page "Electronic band structure" Paragraph 13

This band gap is one of the most useful aspects of the band structure, as it strongly influences the electrical and optical properties of the material.

Electrons can transfer from one band to the other by means of carrier generation and recombination processes.

The band gap and defect states created in the band gap by doping can be used to create semiconductor devices such as solar cells, diodes, transistors, laser diodes, and others.