Materials exam study help/Request for 3 to 5 potential well problems worked out.
I have an exam tomorrow in my materials and devices class and am trying get more experience working potential well problems.
The text for the class is Neamen - Semiconductor Physics and devices.
I'd like to get 3 to 5 worked out problems involving the use of schroedinger's equation (position dependant - not involving time) and boundary conditions to specify wave functions in a potential well with potential barriers of differing values. Short descriptions of why something was done on a step would be nice.
I'd like to study the examples and then try to work them own my own.
A couple of other things...
Is there any easy way to find out the distance to the nearest neighbors in a cubic structure? (i.e. zinc blende, face centered...) The geometry is not always clear to me.
I don't understand Density of States for energy distributions very well. Are there some core ideas here? How are Density of States and Energy related? What is meant by K space? What kind of problems could be asked regarding effective mass of electrons and holds? Are there simple formulas to calculate these values?
Thank you.
- Plain text response
- Attached file(s):
- effective mass.pdf
- answer.doc
- nearest neighbor.pdf
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