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Proceedings Paper

AC conductivity of nanoporous metal-oxide photoanodes for solar energy conversion
Author(s): Steven J. Konezny; Diyar Talbayev; Ismail El Baggari; Charles A. Schmuttenmaer; Victor S. Batista
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Paper Abstract

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.

Paper Details

Date Published: 16 September 2011
PDF: 7 pages
Proc. SPIE 8098, Physical Chemistry of Interfaces and Nanomaterials X, 809805 (16 September 2011); doi: 10.1117/12.894490
Show Author Affiliations
Steven J. Konezny, Yale Univ. (United States)
Diyar Talbayev, Yale Univ. (United States)
Ismail El Baggari, Yale Univ. (United States)
Charles A. Schmuttenmaer, Yale Univ. (United States)
Victor S. Batista, Yale Univ. (United States)

Published in SPIE Proceedings Vol. 8098:
Physical Chemistry of Interfaces and Nanomaterials X
Carlos Silva, Editor(s)

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