The Chiroptical Properties of a Thermally Annealed Film of Chiral Substituted Polyfluorene Depend on Film Thickness
2003; Volume: 15; Issue: 17 Linguagem: Inglês
10.1002/adma.200305243
ISSN1521-4095
AutoresMichael R. Craig, Pascal Jonkheijm, Stefan C. J. Meskers, Albertus P. H. J. Schenning, E. W. Meijer,
Tópico(s)Luminescence and Fluorescent Materials
ResumoThe degree of circular polarization in the absorption of light by a thermally annealed film of chirally substituted polyfluorene depends strongly on the film thickness. This indicates that the exceptionally high dissymmetry ratios observed for these films originate on a nanoscopic level and are related to the long‐range correlation in the polymer chain orientation. Circular polarizations (see Figure) of up to 50 % can be reached.
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