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Título

Experimental Demonstration of the Mechanism of Light Harvesting Enhancement in Photonic-Crystal-Based Dye-Sensitized Solar Cells

Autor Colodrero, Silvia ; Mihi, Agustín; Anta, Juan A.; Ocaña, Manuel ; Míguez, Hernán
Fecha de publicación 2009
EditorAmerican Chemical Society
Citación Journal of Physical Chemistry C, 113 (4): 1150-1154 (2009)
ResumenHerein, we report an experimental analysis of the photogenerated current of very thin and uniform dye-sensitized nanocrytalline titanium oxide (nc-TiO2) electrodes coupled to high-quality one-dimensional photonic crystals. The effect of well-defined optical absorption resonances are detected both in optical spectroscopy and photogenerated current experiments, a clear correspondence between them being established. Our study demonstrates that light trapping within absorbing electrodes is responsible for the absorption enhancement that has previously been reported and unveils the mechanism behind it. We prove that this effect improves significantly the power conversion efficiency of very thin electrodes
Versión del editorhttp://dx.doi.org/10.1021/jp809789s
URI http://hdl.handle.net/10261/101391
DOI10.1021/jp809789s
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