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Durham University

Department of Physics

Staff profile

Publication details for Associate Professor Fernando Dias

Costa, B.B.A., Jardim, G. A. M., Santos, P. L., Calado, H.D.R., Monkman, A. P., Dias, F. B., da Silva Júnior, E.N. & Cury, L. (2017). Indirect consequences of exciplex states on the phosphorescence lifetime of phenazine-based 1,2,3-triazole luminescent probes. Physical Chemistry Chemical Physics 19(5): 3473-3479.

Author(s) from Durham

Abstract

The optical properties of phenazine derivative probe solutions involving intersystem crossing from singlet to triplet states were investigated by time resolved spectroscopy. The room temperature phosphorescence emission presented different time responses when Cd2+ ions were bound to the probe chemical structure. The complex exciplex formation observed to occur in this case was not directly responsible for the change in the phosphorescence lifetime. This was more influenced by the new molecular conformation and modified spin–orbit coupling imposed by the binding of the Cd2+ ions to the phenazine molecules.