Equivalent Circuit of Electrons and Holes in Thin Semiconductor Films for Photoelectrochemical Water Splitting Applications
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http://dx.doi.org/10.1021/jz3010909 |
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Títol
Equivalent Circuit of Electrons and Holes in Thin Semiconductor Films for Photoelectrochemical Water Splitting ApplicationsData de publicació
2012Editor
American Chemical SocietyISSN
1948-7185Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.acs.org/doi/abs/10.1021/jz3010909Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
A simple model for the kinetics of electrons and holes in a thin semiconductor film in photoelectrochemical water splitting conditions is discussed, with a focus to discriminate between trap-assisted recombination and ... [+]
A simple model for the kinetics of electrons and holes in a thin semiconductor film in photoelectrochemical water splitting conditions is discussed, with a focus to discriminate between trap-assisted recombination and charge-transfer processes. We formulate the kinetic model in terms of the measurements of impedance spectroscopy and discuss the application of the results for the interpretation of the current potential curve under photogeneration. We provide a rigorous structure of the fundamental equivalent circuit for photoelectrochemical water splitting systems including a new predicted feature that is a chemical capacitance of the minority carriers that can give rise, in combination with other standard features, to a total of three arcs in the complex plane. [-]
Publicat a
The Journal of Physical Chemistry Letters, 3, 17Drets d'accés
Copyright © 2012 American Chemical Society
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