- #1
ehrenfest
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Homework Statement
A hole is just a valence band with one missing electron. A semiconductor is just a material that has its conduction electron concentration within a certain range. A direct-gap semiconductor is just a semiconductor with the conduction band edge and the valence band edge on the same vertical in the k-E graph.
But then my book talks about heavy holes and light holes and split off holes and I just don't understand what they are.