The absorption of oxygenated silicon carbide nanoparticles

Márton Vörös, Ṕter Deák, Thomas Frauenheim, Adam Gali

Research output: Contribution to journalArticle

34 Citations (Scopus)


We have investigated the absorption of 0.9-1.4 nm silicon carbide nanoparticles (SiC NPs) by time-dependent density functional calculations, focusing on the effect of various oxygen adsorbates of the surface. We have found that SiO and CO single bonds result in relatively large optical gaps in the ultraviolet region while SiO and CO double bonds will dramatically lower the optical gap into the visible blue and red regions, respectively. Our findings can help interpret recent experiments on colloidal SiC NPs and their utilization in biological applications.

Original languageEnglish
Article number064705
JournalJournal of Chemical Physics
Issue number6
Publication statusPublished - Aug 14 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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