Size-dependent reactivity in hydrosilylation of silicon nanocrystals

  1. Get@NRC: Size-dependent reactivity in hydrosilylation of silicon nanocrystals (Opens in a new window)
DOIResolve DOI:
AuthorSearch for: ; Search for: ; Search for: ; Search for:
Journal titleJournal of the American Chemical Society
Pages95649571; # of pages: 8
SubjectFTIR; Near-IR; Partial separation; Photochemical hydrosilylation; Quantum size effects; Silicon nanocrystals; Size-dependent reactivity; Small angle X-ray scattering; Visible and near infrared; Visible spectral regions; Hydrosilylation; X ray scattering; nanocrystal; chemical reaction; hydrosilylation; infrared spectroscopy; photochemistry; photoluminescence; ultraviolet radiation; X ray crystallography
AbstractWe present an investigation into the influence of nanocrystal size on the reactivity of silicon nanocrystals (Si-NCs) in near-UV photochemical hydrosilylation. The size-dependent reactivity of Si-NCs with photoluminescence (PL) in the visible and near-infrared regions was evaluated using PL and Fourier-transform infrared (FTIR) spectroscopy, and small-angle X-ray scattering (SAXS). Under near-UV excitation, Si-NCs with PL in the visible spectral region react faster than Si-NCs with near-IR PL, allowing partial separation of a mixture of Si-NC sizes through hydrosilylation. This is attributed to quantum size effects in the exciton-mediated mechanisms proposed for this reaction. © 2011 American Chemical Society.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC); National Institute for Nanotechnology
Peer reviewedYes
NPARC number21272028
Export citationExport as RIS
Report a correctionReport a correction
Record identifier822f70ed-d191-40a2-b574-2a5de334cbe8
Record created2014-05-21
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)