Growth of high mobility <i>n</i>-type CdTe by photoassisted molecular beam epitaxy

Abstract

We report details of the successful controlled substitutional doping of CdTe films with indium. These n-type films were prepared using a new technique, photoassisted molecular beam epitaxy, in which the substrate is illuminated during the deposition process. In the present work, an argon ion laser was used as an illumination source. The incident light was found to produce immediate and significant changes in the electrical properties of the films. In particular, highly activated n-type CdTe:In layers resulted.