A. Seidl et al., OXYGEN DISTRIBUTION IN CZOCHRALSKI SILICON MELTS MEASURED BY AN ELECTROCHEMICAL OXYGEN SENSOR, Materials science & engineering. B, Solid-state materials for advanced technology, 36(1-3), 1996, pp. 46-49
Oxygen concentration and distribution in Czochralski silicon melts wer
e investigated by an electrochemical oxygen sensor, based on the solid
ionic conductor zirconia. Crucible rotation was found to have a stron
g influence on the oxygen distribution in the silicon melt. The forced
convection driven by the crucible rotation dominates the oxygen trans
port in the melt compared to diffusion. Concentration variations in th
e melt measured during crystal growth were subsequently compared with
changes of the oxygen content of the grown crystal.