F. Debbagh et al., SOME ANNEALING EFFECTS ON RF-SPUTTERED CU TE/CDTE STRUCTURE/, Materials science & engineering. B, Solid-state materials for advanced technology, 38(3), 1996, pp. 223-227
Cu/Te/CdTe multilayers prepared entirely by r.f. sputtering on silicon
substrates are investigated using grazing incidence X-ray diffraction
(GIXD) and X-ray photoelectron spectroscopy (XPS) techniques. Migrati
on of cadmium atoms from the CdTe layer to the free surface is observe
d when the films are annealed at 450 K. This migration is accompanied
by the diffusion of copper and tellurium into the CdTe layer, leading
to segregation of these two elements at the CdTe/Si interface.