Optical and photoelectron spectroscopic studies of alkyl-passivated silicon nanoparticles
Department of Mechanical Engineering, Faculty of Engineering, Kobe University, Nada-ku, Kobe, 657-8501, Japan
Corresponding author: a firstname.lastname@example.org
Revised: 8 September 2006
Published online: 24 May 2007
We have performed the optical and photoelectron spectroscopic studies of alkyl-passivated Si nanoparticles synthesized by a solution route. The alkyl-passivated Si nanoparticle with mean diameter less than about 2 nm exhibits a strong ultraviolet-blue photoluminescence. Furthermore, we have directly investigated their electronic structures in the vicinity of Fermi level by means of valence-band photoemission measurements using synchrotron radiation. From these results, the detailed optical properties and electronic structures of alkyl-passivated Si nanoparticles are discussed.
PACS: 78.67.-n – Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures / 78.67.Bf – Nanocrystals and nanoparticles / 73.22.-f – Electronic structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007