Synthesis and characterization of manganese-doped silicon nanoparticles: Bifunctional paramagnetic-optical nanomaterial

Xiaoming Zhang, Marcin Brynda, R. David Britt, Elizabeth C. Carroll, Delmar S. Larsen, Angelique Y. Louie, Susan M. Kauzlarich

Research output: Contribution to journalArticle

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Abstract

Mn doped Si nanoparticles have been synthesized via a low-temperature solution route and characterized by X-ray powder diffraction, transmission electron microscopy, optical and emission spectroscopy, and by electron paramagnetic resonance (EPR). The particle diameter was 4 nm, and the surface was capped by octyl groups. Mn doping at 5% resulted in a green emission with a slightly lower quantum yield than undoped Si nanoparticles prepared by the same method. Mn2+ doped into the nanoparticle is confirmed by EPR hyperfine, and the charge carrier dynamics were probed by ultrafast transient absorption spectroscopy. Both techniques are consistent with Mn2+ on or close to the surface of the nanoparticle.

Original languageEnglish (US)
Pages (from-to)10668-10669
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number35
DOIs
StatePublished - Sep 5 2007

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Nanostructures
Silicon
Manganese
Nanostructured materials
Nanoparticles
Electron Spin Resonance Spectroscopy
Paramagnetic resonance
Spectrum Analysis
Powder Diffraction
Emission spectroscopy
Quantum yield
Charge carriers
Transmission Electron Microscopy
Absorption spectroscopy
X-Ray Diffraction
X ray powder diffraction
Doping (additives)
Transmission electron microscopy
Temperature

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Zhang, X., Brynda, M., Britt, R. D., Carroll, E. C., Larsen, D. S., Louie, A. Y., & Kauzlarich, S. M. (2007). Synthesis and characterization of manganese-doped silicon nanoparticles: Bifunctional paramagnetic-optical nanomaterial. Journal of the American Chemical Society, 129(35), 10668-10669. https://doi.org/10.1021/ja074144q

Synthesis and characterization of manganese-doped silicon nanoparticles : Bifunctional paramagnetic-optical nanomaterial. / Zhang, Xiaoming; Brynda, Marcin; Britt, R. David; Carroll, Elizabeth C.; Larsen, Delmar S.; Louie, Angelique Y.; Kauzlarich, Susan M.

In: Journal of the American Chemical Society, Vol. 129, No. 35, 05.09.2007, p. 10668-10669.

Research output: Contribution to journalArticle

Zhang, X, Brynda, M, Britt, RD, Carroll, EC, Larsen, DS, Louie, AY & Kauzlarich, SM 2007, 'Synthesis and characterization of manganese-doped silicon nanoparticles: Bifunctional paramagnetic-optical nanomaterial', Journal of the American Chemical Society, vol. 129, no. 35, pp. 10668-10669. https://doi.org/10.1021/ja074144q
Zhang, Xiaoming ; Brynda, Marcin ; Britt, R. David ; Carroll, Elizabeth C. ; Larsen, Delmar S. ; Louie, Angelique Y. ; Kauzlarich, Susan M. / Synthesis and characterization of manganese-doped silicon nanoparticles : Bifunctional paramagnetic-optical nanomaterial. In: Journal of the American Chemical Society. 2007 ; Vol. 129, No. 35. pp. 10668-10669.
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