Fabrication and characterization of silicon-nanocrystal using platinum-nanomask

Sejoon Lee, Young Suk Shim, Hoon Young Cho, Tae Won Kang, Deuk Young Kim, Youn Hwan Lee, Kang L. Wang

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

We have fabricated Si nanocrystals utilizing nanometer-sized Pt islands acting as etching-masks on SiOx/amorphous-Si/SiOx/p-Si (100) thin films. In the measurement of transmission electron microscopy the Si nanocrystals embedded in SiO2 were observed, and in the measurement of cathodoluminescence spectroscopy at 77 K Si nanocrystal-related peaks were observed at 462 and 647 nm. For the Al/SiO 2/nanocrystalline-Si/SiO2/p-Si capacitor structure, a hysteretic behavior with the flatband voltage shift of 0.592 V was observed in the measurement of capacitance-voltage characteristic at 300 K. These results indicate that Si nanocrystals can be formed by using a nanosized Pt island etching-mask, and that Si nanocrystals embedded in SiO2 layer act as Si quantum dots which hold promise potential applications.

Original languageEnglish
Pages (from-to)379-383
Number of pages5
JournalThin Solid Films
Volume451-452
DOIs
StatePublished - 22 Mar 2004
EventProceedings of Symposium D on Thin Film and Nano-Structured - Strasbourg, France
Duration: 10 Jun 200313 Jun 2003

Keywords

  • Cathodoluminescence
  • Flatband voltage shift
  • Platinum-nanomask
  • Silicon nanocrystals

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