Crystallization of SiSn and SiSnC layers in Si by solid phase epitaxy and ion-beam-induced epitaxy

Naoto Kobayashi, D. H. Zhu, H. Katsumata, H. Kakemoto, M. Hasegawa, N. Hayashi, H. Shibata, Y. Makita, S. Uekusa, T. Tsukamoto

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Abstract

For the synthesis of novel group-IV semiconductors, crystalline growth of amorphous Si1-xSnx and Si1-x-ySnxCy layers in Si formed by Sn and C ion implantation has been investigated with solid phase epitaxial growth (SPEG) and ion-beam-induced epitaxial crystallization (IBIEC). Si(100) wafers were implanted at RT with 110 keV or 270 keV 120Sn ions to a dose up to x = 0.03 at peak concentration and 17 keV or 35 keV 12C ions up to y = 0.025 at peak concentration. SPEG experiments at 750°C have shown epitaxial crystallization of the strained alloy layer in the Si1-xSnx/Si sample (x = 0.03) and strain-compensated layer in the Si1-x-ySnxCy/Si sample with medium C concentration (* = 0.03 and y = 0.019). IBIEC experiments performed with 400 keV Ar ions at 350°C have also induced epitaxial crystallization for the Si1-xSnx/Si sample (x= 0.025), whereas those of Si1-x-ySnxCy (x = 0.025 and y = 0.014) have shown a collapse of epitaxial growth. Photoluminescence (PL) from SPEG-grown Si1-xSnx and Si1-x-ySnxCy samples has shown neither prominent I1 nor G peaks. Present results have revealed features in crystalline growth properties, in both techniques, for the non-thermal equilibrium fabrication of these new alloy semiconductors.

Original languageEnglish
Pages (from-to)199-202
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume121
Issue number1-4
Publication statusPublished - 1997 Jan
Externally publishedYes

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ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

Cite this

Kobayashi, N., Zhu, D. H., Katsumata, H., Kakemoto, H., Hasegawa, M., Hayashi, N., Shibata, H., Makita, Y., Uekusa, S., & Tsukamoto, T. (1997). Crystallization of SiSn and SiSnC layers in Si by solid phase epitaxy and ion-beam-induced epitaxy. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 121(1-4), 199-202.