Abstract

BUSTOS BUSTOS, Erika et al. Synthesis and Characterization of Multilayer Films of Dendrimer-Assembled C₆₀ Materials on Nanocrystalline TiO₂ Electrodes. J. Mex. Chem. Soc [online]. 2007, vol.51, n.2, pp.72-80. ISSN 1870-249X.

Nanocrystalline TiO₂ electrodes were silanized and further modified with C₆₀ fullerene films linked by Starburst™ (PAMAM G0.0) dendrimers of poly(amidoamine), generation 0.0, using a layer-by-layer technique into either branched dendritic or linear structures. The resulting films provide organized nanoassembled photoactive surfaces that adsorb in the visible region and offer a high molar extinction coefficient. The linear nanocomposite structure in particular increases the photocurrent efficiency of the polycrystalline TiO₂ and decreases the recombination effect, yielding a global collection efficiency of 0.14%.

Keywords : Modified electrodes; fullerene C₆₀; dendrimers; TiO₂; silanized; photovoltaic cells.

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