Influence of Ti additions in Sb2Te3 thin films on structure and phase stability was studied by experiments together with theoretical calculations. The incorporation of Ti atoms in the Sb2Te3 thin films caused formation of finer grains. By X-ray photoelectron spectroscopy and ab initio calculation, both the Sb and Te atoms are likely to be replaced by the Ti atoms to form Ti–Sb and Ti–Te covalent bonds. It suggests that the Ti atoms locate in Te1 position and interstice of the lattice.
Journal of Materials Science: Materials in Electronics – Springer Journals
Published: Dec 27, 2017
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