JJAP Conference Proceedings

JJAP Conf. Proc. 3, 011105 (2015) doi:10.7567/JJAPCP.3.011105

IR absorption analysis of oxidation behaviors of nano-composite phases with β-FeSi nanocrystals and Si

Kosuke Morita, Yuya Noguchi, Tatsuya Nakamura, Hiroyuki Kobayashi, Takahide Tatsumi, Yuki Kawakubo, Yoshihito Maeda

  1. Department of Computer Science and Electronics, Kyushu Institute of Technology, Iizuka, Fukuoka 820-8502, Japan
  • Received June 22, 2014
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Abstract

We have investigated oxidation behaviors of nano-composite phase with β-FeSi2 nanocrystals (β-NCs) and Si on Si substrates. IR absorption measurements revealed that only oxidation of Si into SiO2 proceeded in the nano-composite phase. This fact is very important for realization of a novel composite phase with β-NCs and SiO2, which may contribute to enhancement of light emission and to prevent a large thermal quenching of light emission observed in the composite phase with β-NCs and Si.

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