@article{CTT100588853,
  author = {H-J Cheong and A. Tanaka and D. Hippo and K. Usami and Y.  Tsuchiya and H. Mizuta and S. Oda},
  title = {Visible Electroluminescence from Spherical-shaped Silicon Nanocrystals},
  journal = {Japanese Journal of Applied Physics},
  year = 2008,
}

@inproceedings{CTT100566698,
  author = {Hea-Jeong Cheong and Daihei Hippo and Atsushi Tanaka and Kouichi Usami and Yoshishige Tsuchiya and Hiroshi Mizuta and Shunri Od},
  title = {Visible Electroluminescence from Size-Controlled Silicon Quantum Dots},
  booktitle = {},
  year = 2006,
}