Deep level spectroscopy in InP:Fe

Abstract

The characteristics of a single electron trap related to the iron deep level acceptor have been determined for the first time by DLTS techniques in indium phosphide. An activation energy of 0.63 eV and a capture cross-section of 3.5×10−14 cm2 have been measured. The presence of this trap in nominally undoped samples shows that iron can be an important residual impurity in InP.