Temperature effects in dye-sensitized solar cells
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http://dx.doi.org/10.1039/c2cp43220j |
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Título
Temperature effects in dye-sensitized solar cellsFecha de publicación
2013Editor
Royal Society of ChemistryISSN
1463-1377; 1465-3958Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://pubs.rsc.org/en/content/articlepdf/2013/cp/c2cp43220jVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
In the standard solar cell technologies such as crystalline silicon and cadmium telluride, increments of
temperature in the cell produce large variations in the energy conversion efficiency, which decreases at a
constant ... [+]
In the standard solar cell technologies such as crystalline silicon and cadmium telluride, increments of
temperature in the cell produce large variations in the energy conversion efficiency, which decreases at a
constant rate. In dye solar cells the efficiency remains roughly constant with a maximum at around 30–40 1C
and further decays above this temperature. In this work, the origin of this characteristic behavior is
explained. Data show that under illumination recombination kinetics in the active layer of the cell is the
same between 7 and 40 1C. Consequently, the efficiency of the cell remained virtually constant, with only
small differences in the fill factor associated with changes in the series resistance. A further increase in
temperature up to 70 1C produces an increase in recombination kinetics yielding lower photopotential and
device performance. Finally, it is emphasized that at the normal operating temperatures of solar cells, the
gap among the conversion efficiency of different technologies is much smaller than generally acknowledged. [-]
Publicado en
Physical Chemistry Chemical Physics, 2013, Volume 15, Issue 7Derechos de acceso
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