Document Type
Article
Rights
Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence
Disciplines
Optics
Abstract
A series of novel pi (p) conjugated polymers, originating from the archetypical Polyphenylene vinylene, in which the phenyl units are successively replaced by the larger naphthyl and anthryl acene units, were previously found to have a well-defined relationship between their relative fluorescence yields and their vibrational characteristics, as determined by Raman spectroscopy. In this study the Strickler–Berg equation is used to probe the influence of continual substitution of higher order acene units into the conjugated backbone in terms of the variation of the radiative and non-radiative rates. The deconvolution of the radiative and non-radiative rates enables the correlation of the reduction of the Raman intensity and concomitant increase in the fluorescence yield with the reduction of the non-radiative rate. This confirms that the reduction of the non-radiative rate is the dominant process introduced by the vibrational confinement originating from systematic substitution of higher order acene units into the polymer backbone.
DOI
https://doi.org/10.1016/j.polymer.2008.07.035
Recommended Citation
O'Neill, L. et al. (2008) Correlation of Vibrational Intensity with Fluorescence Lifetimes in π Conjugated Polymers. Polymer, Vol. 49, Issue 19, pp. 4109-4114. 9th September. doi:10.1016/j.polymer.2008.07.035
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International License.
Publication Details
Polymer. Volume 49, Issue 19, 9 September 2008, Pages 4109-4114. doi:10.1016/j.polymer.2008.07.035