Transport measurements on large single crystals of Cd0.8Zn0.2Te:Cl ind
icate that Cl donors form DX centers in CdZnTe. We have observed persi
stent photoconductivity (PPC) with;an annealing temperature T(alpha)ap
proximate to 130 K. Hall-effect experiments indicate that the PPC aris
es from a persistent increase in the density of charge carriers; the s
aturation density is N-sat=6x10(16) cm(-3). The deep binding energy of
the DX center is E(d)=0.22 eV. (C) 1995 American Institute of Physics
.