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White-Light-Emitting Self-Assembled NanoFibers and Their Evidence by Microspectroscopy of Individual Objects.
MedLine Citation:
PMID:  21182256     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The self-assembly of a blue-emitting light-harvesting organogelator and specifically designed highly fluorescent tetracenes yields nanofibers with tunable emissive properties. In particular, under near-UV excitation, white light emission is achieved in organogels and dry films of nanofibers. Confocal fluorescence microspectroscopy demonstrates that each individual nanofiber emits white light. A kinetic study shows that an energy transfer (ET) occurs between the blue-emitting anthracene derivative and the green- and red-emitting tetracenes, while inter-tetracene ETs also take place. Moreover, microscopy unravels that the nanofibers emit polarized emission in the blue spectral region, while at wavelengths higher than 500 nm the emission is not significantly polarized.
Authors:
Carlo Giansante; Guillaume Raffy; Christian Schäfer; Hakim Rahma; Min-Tzu Kao; Alexandre G L Olive; André Del Guerzo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-12-23
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  -     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Université Bordeaux 1, CNRS, Institut des Sciences Moléculaires, NEO Nanostructures Organiques, 351 crs de la Liberation, 33405 Talence cédex, France.
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