ehrenfest
Mar26-08, 02:15 AM
1. The problem statement, all variables and given/known data
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.
2. Relevant equations
3. The attempt at a solution
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.
2. Relevant equations
3. The attempt at a solution