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Multilayer Shell Walls with Versatile Electron Transfer Properties
Author(s) -
Wang Chaoyang,
Liu Shanshan,
Liu Xinxing,
Tong Zhen
Publication year - 2007
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200600871
Subject(s) - viologen , quenching (fluorescence) , shell (structure) , bilayer , materials science , electron transfer , electron acceptor , layer (electronics) , acceptor , excited state , monolayer , layer by layer , electron donor , fluorescence , chemical engineering , photochemistry , core (optical fiber) , electron , nanotechnology , composite material , chemistry , optics , membrane , atomic physics , organic chemistry , physics , biochemistry , condensed matter physics , engineering , quantum mechanics , catalysis
Core‐shell microparticles with functional multilayer shell walls consisting layers of naphthalene‐labeled polyanion ANp10 and polyviologen (PV) were fabricated through layer‐by‐layer (LbL) self‐assembly. Fluorescence emission from the naphthyl group in the ANp10 layer was found to be quenched by the viologen group in the PV layer regardless in inner or outer layer. This quenching was attributed to electron transfer from the excited naphthyl donor to the viologen acceptor. The quenching efficiency was simply tuned by changing numbers of the ALG/CHI bilayer spacer and PV layer. The resulting core‐shell microparticles will be served as a novel light‐harvesting antenna system.