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Synthesis and characterization of perylene nanoparticles
Author(s) -
Latterini L.,
Roscini C.,
Carlotti B.,
Aloisi G. G.,
Elisei F.
Publication year - 2006
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200566194
Subject(s) - perylene , nanoparticle , fluorescence , excimer , characterization (materials science) , aqueous solution , confocal , precipitation , materials science , atomic force microscopy , chemical engineering , nanotechnology , photochemistry , analytical chemistry (journal) , chemistry , optics , organic chemistry , physics , engineering , meteorology
Nanoparticles were prepared in different experimental conditions by a re‐precipitation method by use of perylene and polyvinylalcohol as active material and stabilizer, respectively. The excitation and emission spectral properties of dispersions in aqueous solutions of the various samples were recorded together with the fluorescence quantum yields and lifetimes (where detectable). The experimental results are consistent with the formation of excimer‐like states, responsible of the emission properties, in the nanoparticles. Confocal fluorescence and atomic force (AFM) microscopies were able to give information on the fluorescence properties and size distribution (most probable size of 3–5 nm) of the nanoparticles. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)