What Do the Terms in the Semiconductor Density Equation Represent?

[stagger_lee]

Homework Statement

Having some trouble with the following equation, I'm not sure what each term represents.

The problem I have is does c,v have something to do with conduction and valence? But what is N and m? And what does it mean when terms are separated by a comma?

Homework Equations

Nc,v = 2 ((2\pimc,vKT)/(h^2))

The Attempt at a Solution

From what I gather;

K=Boltmann's constant
T=Temperature
h=Planck's constant
Nc,v=?
mc,v=?

 

[nickjer]

Please use latex, since I am guessing the "c,v" are subscripts. In that case you are right about conduction and valence. N is the number of energy levels in either the conduction or valence band (basically density of states) and m is the mass of the carrier.

 

[stagger_lee]

Sorry, i'll make sure I use latex in future.

That's cleared things up for me. Thank you.