JJAP Conference Proceedings

JJAP Conf. Proc. 3, 011107 (2015) doi:10.7567/JJAPCP.3.011107

Photoluminescence enhancement of β-FeSi2 nanocrystals controlled by transport of holes in Cu-doped n-type Si substrates

Yoshihito Maeda1,2, Takahide Tatsumi1, Yuya Noguchi1, Yuki Kawakubo1, Hiroyuki Kobayashi1, Kazumasa Narumi2, Seiji Sakai2

  1. 1Department of Computer Science and Electronics, Kyushu Institute of Technology, Iizuka, Fukuoka 820-8502, Japan
  2. 2Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
  • Received June 22, 2014
  • PDF (639 KB) |

Abstract

We have investigated PL behavior of β-FeSi2 nanocrystals controlled by transport of holes in Cu-doped n-type Si substrates. PL enhancement was observed and PCI-PL measurements revealed that PL enhancement was attributed to a transport process of holes with a larger time constant in Cu-doped n-Si substrate in which an interval trap process is controlled by Cu doping.

Creative Commons License Content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References

  1. 1 T. Nakamura, T. Tatsumi, K. Morita, H. Kobayashi, Y. Noguchi, Y. Kawakubo, and Y. Maeda, JJAP Conf. Proc. 3, 011106 (2015).
  2. 2 Y. Terai and Y. Maeda, Appl. Phys. Lett. 84, 903 (2004).
  3. 3 Y. Maeda, K. Nishimura, T. Nakajima, B. Matsukura, K. Narumi, and S. Sakai, Phys. Status Solidi C 9, 1884 (2012).
  4. 4 K. Akiyama, S. Kaneko, H. Funakubo, and M. Itakura, Appl. Phys. Lett. 91, 071903 (2007).
  5. 5 Y. Maeda, T. Tatsumi, Y. Kawakubo, Y. Noguchi, H. Kobayashi, K. Narumi, and S. Sakai, Phys. Status Solidi C (2014) (in press).
  6. 6 Y. Maeda, Y. Terai, M. Itakura, and N. Kuwano, Thin Solid Films 461, 160 (2004).

↑