Current-less anodization of intrinsic silicon powder grains: Formation of fluorescent Si nanoparticles

D. Nielsen, L. Abuhassan, M. Alchihabi, A. Al-Muhanna, Jon Host, M. H. Nayfeh

Research output: Contribution to journalArticlepeer-review

Abstract

We examine current-less anodization of Si powder grains which are dispersed in a liquid. The grains are prepared red luminescent using a platinum catalyst from a chloroplatinic acid precursor. We also use the procedure to form dispersions of fluorescent Si nanoparticles in the size range of 3-6 nm across by subsequent sonication of the grains. The results are discussed in terms of the calculated thickness of the depletion layer in the grains due to a light metal doping and compared with recent results for the anodization of wirelike geometry.

Original languageEnglish (US)
Article number114302
JournalJournal of Applied Physics
Volume101
Issue number11
DOIs
StatePublished - Jun 22 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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