Laser-induced shock waves processing of II-VI solid solutions interface

Though anodic oxidation has been recognized as an effective technology to fabricate photoconductive detectors the insufficient thermal stability of these devices is still a problem waiting for solution. This research was accomplished to show the potential of laser-induced shock waves (LSW) for the modification of the properties of anodic oxide (AO)-HdCdTe interface. The experiments show that LSW has a dual influence upon the interface, i.e. on the one hand, the fixed positive charge tends to approach a particular value which seems to be equilibrium, but on the other hand the electron concentration in the n-type layer having emerged after annealing decrease by an order of magnitude. These phenomena are caused by the AO-HdCdTe interface rebuilt and the changed properties of Hg source at the interface in particular