Abstract
We investigated phosphorescence of conjugated poly-para-phenylene polymers sensitized by a dimethylamino derivative of benzyl (DMAB) and a methyl derivative of tri(2-phenylpyridyl)iridium(III) [Ir(meppy)3]. We found that adding both compounds to the polymer quenches the fluorescence of the polymer and increases its phosphorescence. Although the effectiveness of fluorescence quenching of the polymer is the same, a higher intensity and decay rate of phosphorescence quenching are observed for the polymer activated by the organometallic complex. The results are interpreted in the framework of the model of a remote resonance-enhanced effect of an external heavy atom.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 4, pp. 447–452, July–August, 2007.
An erratum to this article is available at http://dx.doi.org/10.1007/s10812-008-9038-1.
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Bagnich, S.A. Phosphorescence of conjugated poly-para-phenylene polymers sensitized by an organometallic complex with a heavy metal atom. J Appl Spectrosc 74, 494–500 (2007). https://doi.org/10.1007/s10812-007-0079-7
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DOI: https://doi.org/10.1007/s10812-007-0079-7