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gracy
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What exactly is conduction band?electrons from valence band jump into conduction band where they exactly go ,do they go to higher shell or subshell or orbital or stays in same place with more kinetic energy?
gracy said:What exactly is conduction band?electrons from valence band jump into conduction band where they exactly go ,do they go to higher shell or subshell or orbital or stays in same place with more kinetic energy?
By definition of conductors.gracy said:In conductors valence band and conduction band overlap why?
gracy said:In conductors valence band and conduction band overlap why?i mean does it mean that in conductors electrons gain more energy than semiconductors and insulators on giving same amount of energy from external source.
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gracy said:In conductors valence band and conduction band overlap why?i mean does it mean that in conductors electrons gain more energy than semiconductors and insulators on giving same amount of energy from external source.
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A conduction band in a semiconductor is an energy level in the material's electronic band structure where electrons can easily move and conduct electricity. It is located above the valence band and is separated by a band gap.
The presence of a conduction band in a semiconductor allows electrons to move freely and conduct electricity. The number of electrons in the conduction band determines the conductivity of the material. A higher number of electrons in the conduction band results in higher conductivity.
The conduction band in a semiconductor is formed due to the addition of impurities or doping. This introduces extra electrons or holes into the material, which can move freely and contribute to the conduction band.
The main difference between the conduction band in a semiconductor and a conductor is the presence of a band gap. In a semiconductor, there is a small band gap between the valence band and the conduction band, while in a conductor, there is no band gap, allowing electrons to easily move and conduct electricity.
As temperature increases, the conduction band in a semiconductor becomes more populated with electrons, resulting in higher conductivity. This is because at higher temperatures, more electrons gain enough energy to jump from the valence band to the conduction band, allowing them to conduct electricity more easily.