A study is reported of the codoping of SrS:Ce by Ag and Cu in order to achieve charge compensation of the trivalent Ce atom. Both Ag and Cu codoping produced a blue shift in the photoluminescence spectra and much higher electroluminescent device performance. These improvements were attributed to the substitutional incorporation of Ag and Cu onto the Sr lattice site which minimized the vacancy formation and provided charge compensation. ©1997 American Institute of Physics.