Fluorescence in nanostructured fulleride films

R. F. M. Lobo, M. S. Costa, J. H. Ribeiro, César Augusto Correia Sequeira, P. Pereira

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Abstract

Nanostructuring of fullerene C60 beam deposited films is achieved by electrochemical reduction in a potassium hydroxide aqueous solution. Alkali fulleride clusters are formed at the electrode, as it is illustrated by cyclic voltammetry, x-ray diffraction, and scanning tunneling microscopy. Fluorescence emission from fluorophore doped fullerene reduced films was investigated by fluorescence spectroscopy and scanning near-field optical microscopy. These techniques lead to results which also fit such nanometer-sized fulleride cluster interpretation. In particular, the fluorophore fluorescence lifetime decreases as long as aggregation in the film is more effective, which occurs with the increase of film thickness.

Original languageEnglish
Article number203102
JournalApplied Physics Letters
Volume89
Issue number20
DOIs
Publication statusPublished - 13 Nov 2006

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    Lobo, R. F. M., Costa, M. S., Ribeiro, J. H., Sequeira, C. A. C., & Pereira, P. (2006). Fluorescence in nanostructured fulleride films. Applied Physics Letters, 89(20), [203102]. https://doi.org/10.1063/1.2388245