Mostrar el registro sencillo del ítem
Panchromatic sensitized solar cells based on metal sulfide quantum dots grown directly on nanostructured TiO2 electrodes
dc.contributor.author | Mora-Sero, Ivan | |
dc.contributor.author | Gimenez, Sixto | |
dc.contributor.author | Braga, Antonio | |
dc.contributor.author | Concina, Isabella | |
dc.contributor.author | Vomiero, Alberto | |
dc.date.accessioned | 2012-10-03T09:43:03Z | |
dc.date.available | 2012-10-03T09:43:03Z | |
dc.date.issued | 2011-02 | |
dc.identifier.citation | Journal of Physical Chemistry Letters (Feb. 2011), vol. 2 , no 5, 454-460 | ca_CA |
dc.identifier.issn | 1948-7185 | |
dc.identifier.uri | http://hdl.handle.net/10234/47995 | |
dc.description.abstract | The use of narrow band gap semiconductors such as PbS may expand the light absorption range to the near-infrared region in quantum-dot-sensitized solar cells (QDSCs), increasing the generated photocurrent. However, the application of PbS as a sensitizer in QDSCs causes some problems of stability and high recombination. Here, we show that the direct growth of a CdS coating layer on previously deposited PbS by the simple method of successive ionic layer adsorption and reaction (SILAR) minimizes these problems. A remarkable short-circuit current density for PbS/CdS QDSCs is demonstrated, 11 mA/cm2, compared to that of PbS QDSCs, with photocurrents lower than 4 mA/cm2, using polysulfide electrolyte in both cells. The cell efficiency reached a promising 2.21% under 1 sun of simulated irradiation (AM1.5G, 100 mW/cm2). Enhancement of the solar cell performance beyond the arithmetic addition of the efficiencies of the single constituents (PbS and CdS) is demonstrated for the nanocomposite PbS/CdS configuration. PbS dramatically increases the obtained photocurrents, and the CdS coating stabilizes the solar cell behavior. | ca_CA |
dc.format.extent | 7 p. | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.rights | © 2011 American Chemical Society | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | quantum-dot-sensitized solar cells | ca_CA |
dc.subject | successive ionic layer adsorption and reaction | ca_CA |
dc.subject | CdS | ca_CA |
dc.subject | PbS | ca_CA |
dc.title | Panchromatic sensitized solar cells based on metal sulfide quantum dots grown directly on nanostructured TiO2 electrodes | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1021/jz2000112 | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.acs.org/doi/abs/10.1021/jz2000112 | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion |
Ficheros en el ítem
Ficheros | Tamaño | Formato | Ver |
---|---|---|---|
No hay ficheros asociados a este ítem. |
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
FCA_Articles [511]
Articles de publicacions periódiques