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dc.contributor.author
Vazquez, Cecilia Irene  
dc.contributor.author
Baruzzi, Ana Maria  
dc.contributor.author
Iglesias, Rodrigo Alejandro  
dc.date.available
2018-10-05T19:01:43Z  
dc.date.issued
2016-11  
dc.identifier.citation
Vazquez, Cecilia Irene; Baruzzi, Ana Maria; Iglesias, Rodrigo Alejandro; Charge Extraction from TiO2 Nanotubes Sensitized with CdS Quantum Dots by SILAR Method; IEEE Electron Devices Society; IEEE Journal of Photovoltaics; 6; 6; 11-2016; 1515-1521  
dc.identifier.issn
2156-3381  
dc.identifier.uri
http://hdl.handle.net/11336/61786  
dc.description.abstract
Quantum dot (QD) solar cells based on different materials have received a noticeable interest during the past ten years; however, their efficiency and stability are still the main drawback of this technology, which leads to a lack of performance of these devices. There are several electron loss (and efficiency) processes involved after photon absorption, but perhaps the main issue is with the electron recombination after excitation of the surface. In this paper, we have studied the dependence of short-circuit photocurrent of TiO2 nanotubes with varying amounts of CdS QDs deposited by the successive ionic layer adsorption and reaction method. We have found that there is an optimum coverage of CdS in order to achieve the maximum photocurrent value. This behavior is explained and characterized in terms of prevailing recombination processes at higher CdS coverage, where quantum confinement becomes less important. By using the charge extraction method, we could determine the time dependence of electrode charge and indicates that the back reaction of electrons with the redox electrolyte present in solution is of the first order in electron density and that it originates from the electrons present in the TiO2 conduction band.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
IEEE Electron Devices Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Charge Extraction  
dc.subject
Open Circuit  
dc.subject
Solar Cells  
dc.subject
Successive Ionic Layer Adsorption And Reaction (Silar)  
dc.subject.classification
Otras Ciencias Químicas  
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Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Charge Extraction from TiO2 Nanotubes Sensitized with CdS Quantum Dots by SILAR Method  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-09-10T15:48:05Z  
dc.journal.volume
6  
dc.journal.number
6  
dc.journal.pagination
1515-1521  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Vazquez, Cecilia Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Baruzzi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.description.fil
Fil: Iglesias, Rodrigo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina  
dc.journal.title
IEEE Journal of Photovoltaics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1109/JPHOTOV.2016.2611656  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://ieeexplore.ieee.org/document/7586104/