Förster energy transfer between Langmuir-Blodgett film layers in aqueous solution

Abstract

The Förster energy transfer between chromophores in several different types of Langmuir-Blodgett (LB) films exposed to aqueous conditions was examined. The donor and acceptor chromophores were either contained in a monolayer of a preformed copolymer incorporating amphiphilic side chains and hydrophilic spacer groups (dansyldihexadecylamine as the donor and 1,1′-dioctadecyl-3,3,3′,3′-tetramethylindocarbocyanine perchlorate as the acceptor) or grafted to a monolayer of such a copolymer (anthracene as the donor and 7-nitrobenz-2-oxa-1,3-diazole as the acceptor). The monolayers containing donor or acceptor chromophores were separated by neutral spacer layers of cadmium arachidate or copolymer ma..