The influence of non-uniform deformation on photoelectric properties of crystalline silicon

Abstract

Measurements of the photoconductivity (PC) and photomagnetic effect (PME) spectra of crystalline silicon were carried out for the sample under the non-uniform bend deformation. This deformation causes a decrease of the photoconductivity spectrum drop in the short-wave region when illuminating the stretched surface. Under constant deformation conditions the PME spectrum form is changed only in the long-wave region. Obtained data are explained by diffusion length decreasing as a consequence of decreasing diffusion coefficient under the influence of a strain gradient.