- #1
Master J
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A question on semiconductors.
I need to determine the carrier concentration and type.
I have worked out the type but its the conc. that is getting me.
I have the conc., n, as:
n = wBJ / eV
w is the width of sample, B the mag. field, e is charge, and V the Hall voltage...these are all known EXCEPT J. Now the only other pieces of info I have are the sample dimensions and the battery voltage that supplies the current.
I can't for the life of me see where I find J. I just can't get it!
Any pointers in the right directions?
I need to determine the carrier concentration and type.
I have worked out the type but its the conc. that is getting me.
I have the conc., n, as:
n = wBJ / eV
w is the width of sample, B the mag. field, e is charge, and V the Hall voltage...these are all known EXCEPT J. Now the only other pieces of info I have are the sample dimensions and the battery voltage that supplies the current.
I can't for the life of me see where I find J. I just can't get it!
Any pointers in the right directions?