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Title: Panchromatic Porous Specular Back Reflectors for Efficient Transparent Dye Solar Cells
Authors: López-López, Carmen ; Colodrero, Silvia ; Míguez, Hernán
Issue Date: Oct-2013
Publisher: Royal Society of Chemistry (Great Britain)
Citation: Physical Chemistry Chemical Physics (2013)
Abstract: A panchromatic specular reflector based dye solar cell is herein presented. Photovoltaic performance of this novel design is compared to that of cells in which standard diffuse scattering layers are integrated. The capability of the proposed multilayer structures to both emulate the broad band reflection of diffuse scattering layers of standard thickness (around 5 microns) and give rise to similarly high light harvesting and power conversion efficiencies, yet preserving the transparency of the device, is demonstrated. Such white light reflectors are comprised of stacks of different porous optical multilayers, each one displaying a strong reflection at a complementary spectral range, and are designed to leave transmittance unaltered in a narrow red-frequency range at which the sensitized electrode shows negligible absorption, thus allowing to see through the cell. The reflectance bandwidth achieved is three times as broad as the largest previously achieved with any photonic structure integrated in a dye solar cell.
Description: 6 páginas, 4 figuras, 1 tabla
Publisher version (URL): http://dx.doi.org/10.1039/C3CP53939C
URI: http://hdl.handle.net/10261/84852
DOI: 10.1039/C3CP53939C
ISSN: 1463-9076
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