Fabrication of fluorescent nanoparticles of dendronized perylenediimide by laser ablation in water

R. Yasukuni, T. Asahi*, Teruki Sugiyama, Hiroshi Masuhara, M. Sliwa, J. Hofkens, F. C. De Schryver, M. Van Der Auweraer, A. Herrmann, K. Müllen

*Corresponding author for this work

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Highly fluorescent organic nanoparticles with size of about 300 nm were prepared by nanosecond laser ablation of micrometer-sized powder of dendronized perylenediimide dispersed in water. The nanoparticle colloidal solution provided a fluorescence quantum yield of 0.58. The absorption and emission spectral studies demonstrated that the bulky dendron groups at the side bays of perylenediimide chromophore efficiently suppress the interchromophoric interactions in the nanoparticles. Fluorescence measurement on several single nanoparticles underlines that the prepared nanoparticles are bright and photo-stable enough to be a useful probe for single particle fluorescence investigation.

Original languageEnglish
Pages (from-to)5-9
Number of pages5
JournalApplied Physics A: Materials Science and Processing
Volume93
Issue number1
DOIs
StatePublished - 1 Oct 2008

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