Defect concentration measurements in solids using a lyoluminescence method

Abstract

The dependence of alkali halide crystal lyoluminescence on crystal lattice defect concentration has been studied using the rotating-disk method. It is shown that lyoluminescence intensity changes in proportion to changes of F-center concentration in a crystal. It is also demonstrated that by gradually dissolving the crystal in the form of a disk, while rotating it with a constant angular rate around its axis of symmetry, it is possible to determine the defect distribution over the crystal depth with a resolution of the order of 1 μm according to measurements of lyoluminescence intensity.