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    Effect of gold nanoparticles on intramolecular exciplex emission in organized porphyrin–fullerene dyad films

    Year: 2009

    Journal: Chemical Physics Letters, Volume 471, Issues 4-6, 26 March 2009, Pages 269-275, 20111221

    Authors: Anne Kotiaho, Riikka Lahtinen, Hanna-Kaisa Latvala, Alexander Efimov, Nikolai V. Tkachenko and Helge Lemmetyinen

    Organizations: Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101 Tampere, Finland

    Interlayer processes of porphyrin–fullerene dyad (PF) and octanethiol-protected 3 nm-gold nanoparticles (AuNP), assembled as films by Langmuir–Schäfer method, were studied by fluorescence and photoelectrical measurements. The PF and AuNP films appear homogeneous on μm-scale and have full coverage on each other. Both the exciplex emission and the photoelectrical response of the PF dyad are altered by the AuNP film. The results show that the AuNP film has an interaction with the intramolecular exciplex of the PF dyad.