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Answer by The Photon for Is the valence band neutral?
A band, in itself, does not have charge. A band is just a collection of possible states where electons might be found. The electrons have charge but the states themselves do not.If the valence band is...
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While studying about band theory of semiconductors, I observed that when the electrons were excited from the valence band to the conduction band, they left behind holes in the valence band. From my...
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