In a semiconductor, the range of electron energy, higher than that of the valence band, sufficient to make the electrons free to move from atom to atom under the influence of an applied electric field and thus constitute an electric current. In the atomic structure of a material, a partially filled or empty energy level in which electrons are free to move, thus allowing the material to conduct an electrical current upon application of an electric field by means of an applied voltage.
the unfilled energy levels into which electrons can be excited to become conductive electrons; a band that when partially occupied by mobile electrons, permits their net movement in a particular direction, producing the flow of electricity through the solid.
An energy band in a solid in which electrons are free to move, producing a net transfer of charge.
the group of extremely closely spaced energy levels in a metal which free electrons can occupy. NH3 + H2O → NH4+ + OH
The energy band above the energy gap in a semiconductor. Electrons with enough energy to reach the conduction band can freely move within the semiconductor in response to externally applied potential gradients.
The band outside of the valence shell.
the upper energy band in a semiconductor separated from the valence band by the energy gap; The conduction band is not completely filled with electrons, hence, electrons are free to "conduct."
the lowest-lying electron energy band that is not completely filled with electrons.
a group of energy states that are empty at zero degrees kelvin and are available to support the movement of electrons that gain sufficient energy to jump from the valence band to empty levels in the conduction band.
A partially filled energy band in which electrons can move freely.
In semiconductors and insulators, the conduction band is the range of electron energy, higher than that of the valence band, sufficient to make the electrons free to accelerate under the influence of an applied electric field and thus constitute an electric current. Semiconductors may cross this conduction band when they are excited. This is usually by thermal energy.
