Temperature-dependent Hall effect measurements are reported on a serie
s of nitrogen doped ZnSe and ZnTe epilayers using a van der Pauw confi
guration. A Zn(Se,Te) pseudo-graded band gap layer was used to form oh
mic contacts to p-type ZnSe. The activation energy of nitrogen in ZnSe
at the infinite dilution limit was extrapolated to be 114 meV. For a
ZnTe film having a room temperature free hole concentration of p = 4.1
x 10(16) cm-3, the activation energy of the nitrogen acceptors was fo
und to be 46 meV.