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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Spiccia, Leone
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2017Polypyridyl Iron Complex as a Hole-Transporting Material for Formamidinium Lead Bromide Perovskite Solar Cellscitations
- 2017Dipole-field-assisted charge extraction in metal-perovskite-metal back-contact solar cellscitations
- 2017Vertically Aligned Interlayer Expanded MoS2 Nanosheets on a Carbon Support for Hydrogen Evolution Electrocatalysiscitations
- 2017A facile deposition method for CuSCN: Exploring the influence of CuSCN on J-V hysteresis in planar perovskite solar cellscitations
- 2016Solar water oxidation by multicomponent TaON photoanodes functionalized with nickel oxidecitations
- 2016Enhancing the Optoelectronic Performance of Perovskite Solar Cells via a Textured CH3NH3PbI3 Morphologycitations
- 2016Parameters responsible for the degradation of CH3NH3PbI3-based solar cells on polymer substratescitations
- 2016Enhancing the optoelectronic performance of perovskite solar cells via a textured CH3NH3PbI3 morphologycitations
- 2016Highly dispersed cobalt oxide on TaON as efficient photoanodes for long-term solar water splittingcitations
- 2014Gas-assisted preparation of lead iodide perovskite films consisting of a monolayer of single crystalline grains for high efficiency planar solar cellscitations
- 2012Electrodeposited MnOx films from ionic liquid for electrocatalytic water oxidationcitations
- 2007Recognition of thymine and related nucleosides by a ZnII-cyclen complex bearing a ferrocenyl pendant
- 2007Modification of mesoporous TiO2 electrodes by surface treatment with titanium(IV), indium(III) and zirconium(IV) oxide precursors: preparation, characterization and photovoltaic performance in dye-sensitized nanocrystalline solar cells
- 2005BaTiO3-coated TiO2 working electrodes for use in dye-sensitised solar cells
- 2000Experimental and theoretical investigations of the effect of deprotonation on electronic spectra and reversible potentials of photovoltaic sensitizerscitations
Places of action
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article
Modification of mesoporous TiO2 electrodes by surface treatment with titanium(IV), indium(III) and zirconium(IV) oxide precursors: preparation, characterization and photovoltaic performance in dye-sensitized nanocrystalline solar cells
Abstract
Post-treatment of titanium dioxide (TiO2) films for use in dye-sensitized solar cells has been carried out with titanium(IV), indium(III) and zirconium(IV) oxide precursor solutions. The nanostructured electrodes were characterized using nitrogen gas sorption (NGS), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), energy dispersive x-ray spectroscopy (EDX), field emission scanning electron microscopy (FEGSEM) and high resolution transmission electron microscopy (HRTEM). The change in the nanostructure was quantified and the thicknesses of the core-shell coatings determined. An evaluation of the dependence of thickness by HRTEM concluded that one coating step of either the indium or zirconium precursor gave thicknesses of 0.5 nm, with EDX and XPS confirming the presence of either In or Zr at the TiO2 electrode surface, respectively. These working electrodes were then used to fabricate dye-sensitized nanocrystalline solar cells (DSSCs) whose performance was tested under AM1.5G 100 mW cm(-2) illumination. TiCl4 post-treatment was found to improve the photovoltaic efficiencies from 3.6 to 5.3 . Single coatings of either In2O3 or ZrO2 on the TiO2 working electrode resulted in an increased efficiency from 3.6 up to 5.0 . Thinner coatings gave the highest solar cell efficiency. The drop in performance was mainly due to a decrease in short circuit current density (Jsc) with the greater shell thicknesses. ZrO2-coated TiO2 electrodes subjected to microwave heat treatment using a 2.45 GHz microwave produced the highest efficiencies (5.6 ) largely due to an increase in short circuit current from 11.4 to 13.3 mA cm(-2).