Effect of organic and inorganic passivation in quantum-dot-sensitized solar cells
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Títol
Effect of organic and inorganic passivation in quantum-dot-sensitized solar cellsAutoria
Data de publicació
2013Editor
American Chemical SocietyISSN
1948-7185Cita bibliogràfica
DE LA FUENTE, Mauricio Solis, et al. Effect of organic and inorganic passivation in quantum-dot-sensitized solar cells. The Journal of Physical Chemistry Letters, 2013, 4.9: 1519-1525.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://pubs.acs.org/doi/abs/10.1021/jz400626rVersió
info:eu-repo/semantics/acceptedVersionParaules clau / Matèries
Resum
The effect of semiconductor passivation on quantum-dot-sensitized solar cells (QDSCs) has been systematically characterized for CdS and CdS/ZnS. We have found that passivation strongly depends on the passivation agent, ... [+]
The effect of semiconductor passivation on quantum-dot-sensitized solar cells (QDSCs) has been systematically characterized for CdS and CdS/ZnS. We have found that passivation strongly depends on the passivation agent, obtaining an enhancement of the solar cell efficiency for compounds containing amine and thiol groups and, in contrast, a decrease in performance for passivating agents with acid groups. Passivation can induce a change in the position of TiO2 conduction band and also in the recombination rate and nature, reflected in a change in the β parameter. Especially interesting is the finding that β, and consequently the fill factor can be increased with the passivation treatment. Applying this strategy, record cells of 4.65% efficiency for PbS-based QDSCs have been produced. [-]
Publicat a
The Journal of Physical Chemistry Letters (2013), vol. 4, no 9Drets d'accés
© 2013 American Chemical Society
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