Photonics of silicon nanocrystals

Jamie H. Warner; Richard D. Tilley

doi:10.1117/12.639524

18 January 2006 Photonics of silicon nanocrystals

Jamie H. Warner, Richard D. Tilley

Proceedings Volume 6038, Photonics: Design, Technology, and Packaging II; 603815 (2006) https://doi.org/10.1117/12.639524
Event: Microelectronics, MEMS, and Nanotechnology, 2005, Brisbane, Australia

Abstract

Photoluminescent water-soluble silicon nanocrystals were synthesized using solution-phase wet chemistry techniques. Adjustment of the mean size and size distribution was achieved by adjusting the rate of addition of the hydride reducing agent. When the reducing agent was added slowly the mean size of the silicon nanocrystals was 1.4nm with a monodisperse size distribution. However, when the reducing agent was added rapidly the size distribution enlarged and concomitantly the mean sized also increased. The photoluminescence and photoluminescence excitation spectra from the monodisperse sample show narrower features when compared to the solution with the large size distribution. This provides direct evidence for size dependant effects on the photoluminescence of silicon nanocrystals.

Citation Download Citation

Jamie H. Warner and Richard D. Tilley "Photonics of silicon nanocrystals", Proc. SPIE 6038, Photonics: Design, Technology, and Packaging II, 603815 (18 January 2006); https://doi.org/10.1117/12.639524

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