forbidden band मीनिंग इन हिंदी

उदाहरण वाक्य

1. The valence band, immediately below the forbidden band, is normally very nearly completely occupied.
2. The Airy function includes a " tail " which extends into the classically forbidden band gap.
3. An important part of band theory is that there may be forbidden bands in energy : energy intervals that contain no energy levels.
4. Furthermore, when wires are added symmetrically between the split rings, a passband occurs within the previously forbidden band of the split ring dispersion curves.
5. The energy spectrum of an electron moving in a periodical potential of rigid crystal lattice consists of allowed and forbidden bands and is known as the Bloch spectrum.
6. Electronic band structure of a semiconductor material . In semiconductors the Fermi level lies in the middle of a " forbidden band " or band gap between two " allowed bands " called the " valence band " and the " conduction band ".
7. Matrix defects can also be present; oxygen vacancies, silicon vacancies ( usually compensated by 4 hydrogens or 3 hydrogens and a hole ), peroxy groups, etc . Some of the defects produce localized levels in the forbidden band, serving as charge traps; Al ( III ) and B ( III ) typically serve as hole traps while electron vacancies, titanium, germanium, and phosphorus atoms serve as electron traps.