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Photoinduced Vectorial Charge Transfer across Walls of Hollow Microcapsules
Author(s) -
Li Lidong,
Möhwald Helmuth
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200352657
Subject(s) - pyrene , polarity (international relations) , chromophore , photoinduced electron transfer , charge (physics) , polyelectrolyte , materials science , electron transfer , chemical engineering , chloride , photochemistry , chemical physics , chemistry , optoelectronics , nanotechnology , polymer chemistry , polymer , composite material , organic chemistry , physics , biochemistry , quantum mechanics , engineering , cell , metallurgy
Vectorial electron transfer between identical chromophores across the polyelectrolyte multilayer walls of hollow microcapsules can be photoinduced (see picture). This is achieved by inserting pyrene units in sufficiently high concentration into a film and setting up a polarity gradient over nanometer dimensions along which the charge transfer is directed. PV=polyviologen; PSS‐Py=polystyrenesulfonic acid/pyrene; PDADMAC=poly(diallyldimethylammonium chloride).