Transient Photoconductivity and Photoluminescence in InP:Cu

Nonequilibrium photoexcited carrier dynamics in InP:Cu was investigated by two experimental techniques: the time-resolved photoluminescence up-conversion and the transient photoconductivity measurement.Both measurements show that dopmg with copper significantly modifies the photoexcited carrier relaxation in indium phosphide.There are several strong indications that this effect originates from the carrier trapping at metallic precipitates.