The structure and phase composition of SiC epitaxial films, synthesized by atoms replacement

Authors

  • D.I. Bakranova Kazakh-British Technical University, Almaty, Kazakhstan
  • S.A. Kukushkin Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, Russia
  • K.Kh. Nussupov Kazakh-British Technical University, Almaty, Kazakhstan
  • A.V. Osipov Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, Russia
  • N.B. Beisenkhanov Kazakh-British Technical University, Almaty, Kazakhstan
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Keywords:

thin films, silicon carbide, dilatation dipoles, structure, crystallization

Abstract

In this paper, using X-ray diffraction, electron diffraction, atomic force microscopy and Raman microscopy the structure, phase composition and surface microstructure of SiC films, synthesized by substitution of atoms in a high-resistivity (111) oriented c-Si in a gas mixture of CO and SiH4 (264 Pa, 1250 ° C, 15 min) are studied. It is shown that 3C-SiC film is epitaxial and does not contain twins on the surface, the surface has a pyramidal structure with height variations up to 19 nm with a distinct fragmentation of grains with sizes of 100 to 200 nm. It is defined lateral dimensions of large crystals (85 × 110 µm) and average sizes of β-SiC nanocrystals (3 - 7 nm) with perfect structure in the transition region "film-substrate". An absence of large scratches on the SiC film surface is demonstrated. The developed crystalline surface of the film indicates the formation of high-quality SiC crystals due to the healing of contraction pores during a long time (15 min) high-temperature synthesis.

References

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References
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2. A. Fissel, Phys. Rep. 379, 149-155. (2003)
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5. Y.-H. Joung, H.I. Kang, J.H. Kim, H.-S. Lee, J. Lee and W.S. Choi, Nanoscale Research Letters 7(1):22. (2012).
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11. K.Kh. Nussupov, N.B. Beisenkhanov, I.V. Valitova, K.A. Mit’, D.M. Mukhamedshina, E.A. Dmitrieva, J. of Materials Science: Materials in Electronics, 19, 254−262. (2008).
12. F.W. Jones, The measurement of particle size by the X-ray method. Proc. Roy. Soc., London 166A, 16–43. (1938).
13. P. Scherrer, Bestimmung der Grösse und der inneren Struktur von Kolloidteilchen mittels Röntgenstrahlen. Nachr. Ges. Wiss. Göttingen, 26, 98-100. (1918).
14. A. Taylor, X-ray Metallography. John Wiley & Sons, New York – London, 993p. (1961).
15. B.E. Warren, J. Biscoe, Journal of American Ceramic Society, 21(1), 49–54. (1938).
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18. G.V. Benemanskaya, P.A. Dementev, S.А. Kukushkin, M.N. Lapushkin, A.V. Osipov, B. Senkovskiy, S.N. Timoshnev, Materials Physics and Mechanics, 22, 183-190. (2015)

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How to Cite

Bakranova, D., Kukushkin, S., Nussupov, K., Osipov, A., & Beisenkhanov, N. (2018). The structure and phase composition of SiC epitaxial films, synthesized by atoms replacement. Recent Contributions to Physics (Rec.Contr.Phys.), 60(1), 46–51. Retrieved from https://bph.kaznu.kz/index.php/zhuzhu/article/view/512

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Section

Condensed Matter Physics and Materials Science Problems. NanoScience