Relation between the Emission Anisotropy and the Dichroic Ratio for Solute Alignment in Stretched Polymer Films
Open Access
- 1 December 1987
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 42 (12) , 1396-1398
- https://doi.org/10.1515/zna-1987-1205
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 ß thus determined for linear molecules of 1,8-diphenyloctatetraene (DPO), 1,6-diphenylhexatriene (DPH), 1,4-diphenylbutadiene (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.Keywords
This publication has 0 references indexed in Scilit: