Stability of dye-sensitized solar cells under extended thermal stress
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Títol
Stability of dye-sensitized solar cells under extended thermal stressAutoria
Data de publicació
2017Editor
Royal Society of ChemistryISSN
1463-9084; 1463-9076Cita bibliogràfica
Phys. Chem. Chem. Phys., 2017, 19, 22546Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.rsc.org/en/content/articlelanding/2017/cp/c7cp04598k#!divAbstractVersió
info:eu-repo/semantics/submittedVersionResum
In the last few decades, dye-sensitized solar cell (DSC) technology has been demonstrated to be a promising
candidate for low cost energy production due to cost-effective materials and fabrication processes. Arguab ... [+]
In the last few decades, dye-sensitized solar cell (DSC) technology has been demonstrated to be a promising
candidate for low cost energy production due to cost-effective materials and fabrication processes. Arguably,
DSC stability is the biggest challenge for making this technology appealing for industrial exploitation.
This work provides further insight into the stability of DSCs by considering specific dye–electrolyte
systems characterized by Raman and impedance spectroscopy analysis. In particular, two rutheniumbased
dyes, Z907 and Ru505, and two commercially available electrolytes, namely, the high stability
electrolyte (HSE) and solvent-free Livion 12 (L-12), were tested. After 4700 h of thermal stress at 85 1C, the
least stable device composed of Z907/HSE showed an efficiency degradation rate of B14%/1000 h, while
the Ru505/L-12 system retained 96% of its initial efficiency by losing B1% each 1000 h. The present
results show a viable route to stabilize the DSC technology under prolonged annealing conditions
complying with the IEC standard requirements. [-]
Publicat a
Phys. Chem. Chem. Phys., 2017, 19Proyecto de investigación
316494 ; 609788 ; GRISOLIA/2014/034Drets d'accés
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