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Oligofluorene blue emitters for cholesteric liquid crystal lasers

AuthorsChinellato, Luiz S.; Barrio, Jesús del; Piñol, Milagros; Oriol, Luis
Issue Date2010
CitationJournal of Photochemistry and Photobiology A: Chemistry 210: 130-139 (2010)
AbstractWe present the synthesis and characterization of an oligofluorene series whose chemical structure has been tuned to have amorphous nature, compatibility with liquid crystalline matrices and intrinsic chirality. Oligofluorenes are good blue emitters and the emission quantum yield is around 0.8 in the violet-blue range. The prepared materials are suitable for mirror-less laser applications based on a dye-doped liquid crystal resonator. We propose to use fluorene-based compounds to combine two necessary properties to achieve laser emission from cholesteric liquid crystal mixtures: chirality and luminescence. A good intensity emission and a fine tuning of the laser emission are demonstrated.
Identifiersdoi: 10.1016/j.jphotochem.2010.01.006
issn: 1010-6030
Appears in Collections:(ICMA) Artículos
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