3.3 Consequences of a Periodic Potential Flashcards
1
Q
What is m*?
A
The effective mass
2
Q
Define m*
A
Not related to the actual mass, but a measure on the ease of accelerating an electron
3
Q
How can a hole be created?
A
By removing an electron
4
Q
How much current does a full band carry?
A
None
5
Q
When can a photon be absorbed in an insulator/semi conductor?
A
When its energy is larger than the band gap between the empty and filled state
6
Q
How can the colour of a crystal be changed?
A
By adding impurities which change the band structure
