16 September 2011 AC conductivity of nanoporous metal-oxide photoanodes for solar energy conversion
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The temperature- and frequency-dependent ac conductivity of nanoporous metal-oxide semiconductors commonly used in technologies for solar photoconversion is analyzed by using a model based on fluctuation-induced tunneling conduction (FITC). The model takes into account voltage fluctuations of potential barriers that limit electron transport at nanoparticle contact junctions. In contrast to previous models, quantitative agreement over the entire temperature range studied is found by using the FITC model based on a single set of parameters. Guidelines for the design of new materials for dye-sensitized solar cells (DSSCs) and solar photocatalysis are discussed.
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Steven J. Konezny, Steven J. Konezny, Diyar Talbayev, Diyar Talbayev, Ismail El Baggari, Ismail El Baggari, Charles A. Schmuttenmaer, Charles A. Schmuttenmaer, Victor S. Batista, Victor S. Batista, } "AC conductivity of nanoporous metal-oxide photoanodes for solar energy conversion", Proc. SPIE 8098, Physical Chemistry of Interfaces and Nanomaterials X, 809805 (16 September 2011); doi: 10.1117/12.894490; https://doi.org/10.1117/12.894490

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