Relation between the Emission Anisotropy and the Dichroic Ratio for Solute Alignment in Stretched Polymer Films

Z. Gryczyński, A. Kawski

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

For the determination of the angle β between the absorption and emission transition moments it seems appropriate to investigate the emission anisotropy as a function of the absorption dichroic ratio, Rd, rather than of the stretch ratio, Rs, of a polymer film. The angles β thus determined for linear molecules of 1, 8-diphenyloctatetraene (DPO), 1, 6-diphenylhexatriene (DPH), 1, 4-diphenyl-butadiene (DPB), 4-dimethylamino-4′-nitrostilbene (DNS), and p-terphenyl (TP) are considerably smaller and closer to the zero value. Slight deviations of the angles obtained from β = 0° result from the effect of limited rotational motions of the luminescent molecules in the polymer.

Original languageEnglish
Pages (from-to)1396-1398
Number of pages3
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume42
Issue number12
DOIs
StatePublished - 1 Dec 1987

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