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. 2010 Mar 16;11(3):1103–1113. doi: 10.3390/ijms11031103

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© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Scheme 1. — Operation mechanism of the dye sensitized electrochemical solar cell (DSSC). S: Dye sensitizer, S^*: Electronically excited dye sensitizer, S⁺: oxidized dye sensitizer O/R: redox couple (e,g, I₃⁻/I⁻). CB: Conduction band for semiconductors, VB: valence band for semiconductors. (A) Wet-type DSSC with redox couple in the liquid electrolyte. (B) Solid state DSSC with a p-type semiconductor to replace the electrolyte containing the redox couple.