NEUTRON TRANSMUTATION DOPING AS AN EXPERIMENTAL PROBE FOR CU-ZN IN ZNSE

Nuclear transmutation is employed in an investigation of copper doping in ZnSe. Copper stems are introduced at zinc sites in ZnSe after crys tal growth processes are complete, Since the copper dopants are introd uced after growth, far from equilibrium, they are less able to form co mplexes with other dopants or lattice defects as they may do when pres ent during crystal growth. Initial results are consistent with Cu-Zn b eing involved in the copper red and copper green emissions in ZnSe but not in the I-l(d) exitonic emission. (C) 1997 American Institute of P hysics.