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Preparation of Photosensitive Dye Aggregates and Fluorescent Nanocrystals in Microreaction Containers
Author(s) -
Peyratout C.S.,
Möhwald H.,
Dähne L.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200304999
Subject(s) - materials science , fluorescence , surface modification , polyelectrolyte , counterion , nanocrystal , luminescence , nanotechnology , organic dye , supramolecular chemistry , colloid , diffusion , microsphere , chemical engineering , polymer , ion , organic chemistry , optoelectronics , chemistry , molecule , optics , composite material , physics , thermodynamics , engineering
Functionalization of the interior of hollow microcapsules with polyelectrolytes allows the preparation of supramolecular dye assemblies inside the capsules (see Figure). The dye J‐aggregates can be transformed into dye nanocrystals by diffusion of hydrophobic counterions in the capsules, resulting in strong changes of the luminescence behavior.