Dynamic Depolarized Light Scattering of Small Round Plasmonic Nanoparticles: When Imperfection is Only Perfect

Research output: Contribution to journalArticle


Although small round gold nanoparticles (Au NPs) possess only a small degree of shape anisotropy, they support localized surface plasmon resonances and exhibit intrinsic optical anisotropy. These inherent features promote depolarized light scattering, whose temporal fluctuations carry information about rotational Brownian dynamics, and thus can be used to describe the size distribution of round Au NPs. We demonstrate that this allows for a much more accurate determination of particle size and polydispersity through depolarized dynamic light scattering when compared to standard particle sizing with light scattering.


  • Sandor Balog
  • Laura Rodriguez-Lorenzo
  • Christophe A. Monnier
  • Benjamin Michen
  • Marc Obiols-Rabasa
  • Lucia Casal-Dujat
  • Barbara Rothen-Rutishauser
  • Alke Petri-Fink
  • Peter Schurtenberger
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Physical Chemistry
Original languageEnglish
Pages (from-to)17968-17974
JournalJournal of Physical Chemistry C
Issue number31
StatePublished - 2014
Publication categoryResearch