Thermally stimulated luminescence from porous silicon

Valerii P. Aksenov; G. N. Mikhailova; Johannes Boneberg; Paul Leiderer; H.-J. Muenzer

doi:10.1117/12.431204

26 June 2001 Thermally stimulated luminescence from porous silicon

Valerii P. Aksenov, G. N. Mikhailova, Johannes Boneberg, Paul Leiderer, H.-J. Muenzer

Proceedings Volume 4423, Nonresonant Laser-Matter Interaction (NLMI-10); (2001) https://doi.org/10.1117/12.431204
Event: Nonresonant Laser-Matter Interaction (NLMI-10), 2000, St. Petersburg, Russian Federation

Abstract

The time-resolved evolution of the cloud of the porous silicon (PS) particles produced by laser ablation is studied in situ by the analysis of the kinetics of photoluminescence (PL) signal. The cloud of the nanometer-sized silicon crystallites had the high enchantment of luminescence quantum efficiency (QE) in the red region of spectra. The slow PL kinetics component, which is due to the localized carriers, decays on a millisecond time scale. We observed high intensity of laser ablation process for light excited PS. We also study the emission of photons from remnants of porous silicon after laser ablation of PS sample. The red light generation was observed in this case of excitation of PS. Time-resolved experiments on the luminescence show that likely there are large lifetime phonons in quantum silicon wires.

Citation Download Citation

Valerii P. Aksenov, G. N. Mikhailova, Johannes Boneberg, Paul Leiderer, and H.-J. Muenzer "Thermally stimulated luminescence from porous silicon", Proc. SPIE 4423, Nonresonant Laser-Matter Interaction (NLMI-10), (26 June 2001); https://doi.org/10.1117/12.431204

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