Size-dependent oxygen-related electronic states in silicon nanocrystals

J. S. Biteen, Nathan S Lewis, H. A. Atwater, A. Polman

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

The isolation of silicon nanocrystals embedded in SiO 2 and isolated nanocrystals' excitonic emission energy were investigated during controlled oxidation. The nanocrystals with diameters of ∼2.9-3.4 nm exhibited photoluminescence (PL) blueshift upon oxidatively induced size reduction. The oxidation of smaller Si nanocrystals resulted in a PL blueshift, but a redshift in the PL was observed after growth of ∼0.3 monolayers of native oxide. The results show that decrease in excitonic emission energy during oxidation is consistent with formation of an oxygen-related excitonic recombination state.

Original languageEnglish
Pages (from-to)5389-5391
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number26
DOIs
Publication statusPublished - Jun 28 2004

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nanocrystals
silicon
oxygen
photoluminescence
electronics
oxidation
isolation
oxides
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Size-dependent oxygen-related electronic states in silicon nanocrystals. / Biteen, J. S.; Lewis, Nathan S; Atwater, H. A.; Polman, A.

In: Applied Physics Letters, Vol. 84, No. 26, 28.06.2004, p. 5389-5391.

Research output: Contribution to journalArticle

Biteen, J. S. ; Lewis, Nathan S ; Atwater, H. A. ; Polman, A. / Size-dependent oxygen-related electronic states in silicon nanocrystals. In: Applied Physics Letters. 2004 ; Vol. 84, No. 26. pp. 5389-5391.
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