The donors are only lightly ionized
Show that in the low-temperature region the electron density in an n-type material varies as Ne = Nc^(1/2)*Nd^(1/2)*e^(-(Eg-Ed)/2kT) Assume Ne=Nd+ and that the donors are only lightly ionized in that temperature range therefore Ef>Ed.
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Show that in the low-temperature region the electron density in an n-type material varies as Ne = Nc^(1/2)*Nd^(1/2)*e^(-(Eg-Ed)/2kT)Assume Ne=Nd+ and that the donors are only lightly ionized in that temperature range therefore Ef>Ed.
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