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Electronic and Optical Properties of Silicon Nanocrystals

A Tight-Binding Study

Erschienen am 09.03.2015, Auflage: 1/2015
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Bibliografische Daten
ISBN/EAN: 9783659431357
Sprache: Englisch
Umfang: 116 S.
Format (T/L/B): 0.7 x 22 x 15 cm
Einband: kartoniertes Buch

Beschreibung

Even if the discovery of the photoluminescence of porous silicon dates to more than twenty years ago, the research on the optical properties of silicon is still a hot topic. The most recent experimental techniques have allowed the successful synthesis of silicon nanoparticles with narrow size distributions, and the realization of light-emitting silicon devices for technological and biomedical applications. From the theoretical point of view, the physics of silicon nanocrystals still deserves a huge interest. While the quantum confinement effect has been recognized as the main cause of the photoluminescence, many doubts remain on the way in which the phenomenon takes place in real nanocrystals. This book summarizes the result of a work lead by the author at the University of Naples. The density of states, the optical gap, the absorption spectra, the static dielectric constant, the recombination times, are all illustrated for several sets of silicon spheres and ellipsoids, upon changing their size and aspect ratio. The book also reviews previous research work, with special reference to the experimental and theoretical literature on silicon nanocrystals.

Autorenportrait

Fabio Trani, researcher at the University of Naples Federico II (Italy). PhD in Physics and PostDoc in Naples (2005); CNRS fellowship at ILM, Lyon (2008); PostDoc at SNS, Pisa (2009). Scientific Collaborator at EPFL, Lausanne (2011). Solid background in solid state physics, active in the theoretical characterization of low dimensional systems.