| 释义 |
bandgap
band·gap B5056100 (bănd′găp′)n. The difference in energy between electron orbitals in which the electrons are not free to move (called valence bands) and orbitals in which they are relatively free and can carry a current (called conduction bands).bandgap
bandgapIn a material, the energy difference between its non-conductive state and its conductive state. There is virtually no bandgap in most metals, but a very large one in an insulator (dielectric). In a semiconductor, the bandgap is small. Technically, the bandgap is the energy it takes to move electrons from the valence band to the conduction band. |