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- W2012311690 abstract "The photochemistry of cyanine J-aggregates on the surface of colloidal Ag nanoparticles is reported. The photochemistry is initiated through ultrafast photoexcitation of the plasmon band in Ag nanoparticles, producing an enhanced near-field that interacts with the J-aggregate monolayer. Through transient absorption spectroscopy, we show that photoexcitation of the plasmon in Ag nanoparticles leads to exciton dynamics that differ strongly from J-aggregates alone or for J-aggregate monolayers on bulk metal surfaces. Specifically, charge-separated states with a lifetime of approximately 300 ps between the J-aggregate and Ag colloid are formed. The reduction of the Ag nanoparticles is shown to be a multielectron process." @default.
- W2012311690 created "2016-06-24" @default.
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- W2012311690 date "2002-04-03" @default.
- W2012311690 modified "2023-10-17" @default.
- W2012311690 title "Photoinduced Charge Separation Reactions of J-Aggregates Coated on Silver Nanoparticles" @default.
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- W2012311690 doi "https://doi.org/10.1021/ja012263e" @default.
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