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Proceedings Paper

Thermally stimulated luminescence from porous silicon
Author(s): Valerii P. Aksenov; G. N. Mikhailova; Johannes Boneberg; Paul Leiderer; H.-J. Muenzer
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Paper 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.

Paper Details

Date Published: 26 June 2001
PDF: 4 pages
Proc. SPIE 4423, Nonresonant Laser-Matter Interaction (NLMI-10), (26 June 2001); doi: 10.1117/12.431204
Show Author Affiliations
Valerii P. Aksenov, General Physics Institute (Russia)
G. N. Mikhailova, General Physics Institute (Russia)
Johannes Boneberg, Univ. of Konstanz (Switzerland)
Paul Leiderer, Univ. of Konstanz (Germany)
H.-J. Muenzer, Univ. of Konstanz (Germany)

Published in SPIE Proceedings Vol. 4423:
Nonresonant Laser-Matter Interaction (NLMI-10)
Mikhail N. Libenson, Editor(s)

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