Abstract
The results of studying the crystal structure of regions in silicon, recrystallized during the course of thermomigration of the liquid Si–Al zone in the volume of the silicon substrate, are reported (similar regions doped with an acceptor impurity are used to obtain high-voltage solar cells). X-ray methods (including measurements of both diffraction-reflection curves and topograms) and also high-resolution electron microscopy indicate that single-crystal regions in the form of a series of thin strips or rectangular grids are formed as a result of the thermomigration of liquid zones. Dislocation half-loops are detected in the surface layers of the front and back surfaces of the substrate. {311}-type defects are observed in the recrystallized regions.
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References
V. M. Andreev, V. A. Grilikhes, and V. D. Rumyantsev, Photoelectric Conversion of Concentrated Solar Radiation (Nauka, Leningrad, 1989) [in Russian].
A. P. Landsman, D. S. Skrebkov, and V. A. Unishkov, Sov. Phys. Solid State 5, 1558 (1971).
V. G. Doroshenko, M. B. Zaks, V. A. Kalash’yan, V. N. Lozovskii, Yu. V. Skokov, and O. I. Solodukha, Geliotekhnika 4, 14 (1979).
US Patent US3936319 (1976).
V. N. Lozovskii, L. S. Lunin, and V. P. Popov, Temperature-Gradient Zone Recrystallization of Semiconductor Materials (Metallurgiya, Moscow, 1987) [in Russian].
V. N. Lozovskii, L. S. Lunin, and B. M. Seredin, Elektron. Tekh., Ser. 2: Poluprov. Prib., Nos. 2–3 (236), 103 (2015).
V. N. Lozovskii, B. M. Seredin, A. S. Polukhin, and A. I. Solodovnik, Elektron. Tekh., Ser. 2: Poluprov. Prib., No. 5 (239), 65 (2015).
S. Takeda, M. Kohyama, and K. Ibe, Philos. Mag. A 70, 287 (1994).
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Original Russian Text © V.N. Lozovskii, A.A. Lomov, L.S. Lunin, B.M. Seredin, Yu.M. Chesnokov, 2017, published in Fizika i Tekhnika Poluprovodnikov, 2017, Vol. 51, No. 3, pp. 297–301.
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Lozovskii, V.N., Lomov, A.A., Lunin, L.S. et al. Crystal defects in solar cells produced by the method of thermomigration. Semiconductors 51, 285–289 (2017). https://doi.org/10.1134/S1063782617030162
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DOI: https://doi.org/10.1134/S1063782617030162