RT Journal Article
T1 Energy and electron transfer in a poly(fluorene-alt-phenylene) bearing perylenediimides as pendant electron acceptor groups
A1 Gómez Aspe, Rafael
A1 Veldman, Dirk
A1 Blanco, Raúl
A1 Seoane Prado, Carlos
A1 Segura Castedo, José Luis
A1 Janssen, René
AB We describe the synthesis and characterization of a novel poly(fluorene-alt-phenylene) substituted with perylenediimide (PDI) moieties as pendant groups. Cyclic voltammetry experiments show the amphoteric nature of the material, which combines the good electron donor ability of the polymeric chain with the acceptor properties of the pendant PDI moieties. Absorption spectroscopy suggests the presence of PDI aggregates, whereas the emission spectra show a strong emission quenching of both the polymeric backbone and the PDI units. Further investigation on the energy and/or electron-transfer processes involved is carried out by temperature-dependent excitation spectra and photoluminescence lifetimes. These studies show the presence of electron transfer not only from the electron donor polymeric chain to the pendant PDI units but also, and more remarkably, to PDI aggregates both in solution and in solid state, as is further confirmed by photoinduced absorption spectroscopy
SN 0024-9297
YR 2007
FD 2007
LK https://hdl.handle.net/20.500.14352/105753
UL https://hdl.handle.net/20.500.14352/105753
LA eng
NO Rafael Gómez, Dirk Veldman, Raúl Blanco, Carlos Seoane, José L. Segura, and René A. J. Janssen Macromolecules 2007 40 (8), 2760-2772 DOI: 10.1021/ma070026b
NO Ministerio de Ciencia y Tecnología (España)
DS Docta Complutense
RD 25 jul 2024