Differential Hall-Effect Spectroscopy
(DHES) for n-type semiconductor
The electron
concentration produced by
different donor species (density
and energy level
) and one acceptor (density
) is expressed by
.
(1)
The derivative is derived as
(2)
Since energy levels measured from the bottom of the conduction band are
described as
(3)
and
,
(4)
the DHES signal is theoretically
expressed by
. (5)
The function
has a maximum of
at .