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- W2552048780 abstract "Conjugated polymers are complex multichromophore systems, with emission properties strongly dependent on the electronic energy transfer through active subunits. Although the packing of the conjugated chains in the solid state is known to be a key factor to tailor the electronic energy transfer and the resulting optical properties, most of the current solution-based processing methods do not allow for effectively controlling the molecular order, thus making the full unveiling of energy transfer mechanisms very complex. Here we report on conjugated polymer fibers with tailored internal molecular order, leading to a significant enhancement of the emission quantum yield. Steady state and femtosecond time-resolved polarized spectroscopies evidence that excitation is directed toward those chromophores oriented along the fiber axis, on a typical time scale of picoseconds. These aligned and more extended chromophores, resulting from the high stretching rate and electric field applied during the fiber spinning process, lead to improved emission properties. Conjugated polymer fibers are relevant to develop optoelectronic plastic devices with enhanced and anisotropic properties." @default.
- W2552048780 created "2016-11-30" @default.
- W2552048780 creator A5002943324 @default.
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- W2552048780 date "2016-11-17" @default.
- W2552048780 modified "2023-09-27" @default.
- W2552048780 title "Anisotropic Conjugated Polymer Chain Conformation Tailors the Energy Migration in Nanofibers" @default.
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- W2552048780 doi "https://doi.org/10.1021/jacs.6b10761" @default.
- W2552048780 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5133673" @default.
- W2552048780 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27933935" @default.
- W2552048780 hasPublicationYear "2016" @default.
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