Studies on the adsorption of RuN3 dye on sheet-like nanostructured porous ZnO films

Zhang, Rong; Briggs, Evan P.; Thrash, Marvin E.; Kerr, Lei L.

doi:10.1016/j.solmat.2007.10.004

Cited by 31 publications

(13 citation statements)

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“…[177] Another recent study reports that temperature may have an effect on the adsorption and aggregation of dye on the surface of ZnO. [178] A higher temperature can effectively reduce the occurrence of dye aggregation and increase the amount of dye adsorbed on the ZnO.…”

Section: Formation Of Zn 2þ /Dye Complexmentioning

confidence: 99%

ZnO Nanostructures for Dye‐Sensitized Solar Cells

et al. 2009

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This Review focuses on recent developments in the use of ZnO nanostructures for dye‐sensitized solar cell (DSC) applications. It is shown that carefully designed and fabricated nanostructured ZnO films are advantageous for use as a DSC photoelectrode as they offer larger surface areas than bulk film material, direct electron pathways, or effective light‐scattering centers, and, when combined with TiO2, produce a core–shell structure that reduces the combination rate. The limitations of ZnO‐based DSCs are also discussed and several possible methods are proposed so as to expand the knowledge of ZnO to TiO2, motivating further improvement in the power‐conversion efficiency of DSCs.

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Section: Formation Of Zn 2þ /Dye Complexmentioning

confidence: 99%

ZnO Nanostructures for Dye‐Sensitized Solar Cells

et al. 2009

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“…The transport of electrons between the counter‐electrode and the dye is usually performed by a non‐aqueous electrolytic solution of the redox pair ${\rm I}^{- } {\rm /I}_{{\rm 3}}^{- } $ . Several variations in the products or structure previously described can be found in the literature 6–17.…”

Section: Introductionmentioning

confidence: 99%

Improving open‐circuit voltage in DSSCs using Cu‐doped TiO₂ as a semiconductor

Navas

Fernández‐Lorenzo

Aguilar

et al. 2011

Physica Status Solidi (a)

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TiO2 doping has been widely used in photocatalysis and photovoltaic cells to improve the performance of this semiconductor. This paper studies the use of copper as a dopant in TiO2 in dye‐sensitized solar cells (DSSC), analysing the effect on the photovoltaic properties of the cells of different concentrations of copper incorporated into the semiconductor. The copper‐doped TiO2 semiconductor was characterized with several instrumental techniques, including X‐ray diffraction (XRD), inductively coupled plasma atomic emission spectroscopy (ICP‐AES), scanning transmission electron microscopy (STEM), and UV–Vis spectroscopy in order to know its structure, composition and band gap energies with different concentrations of the dopant. An analysis was also performed of the variations in open‐circuit voltage depending on the concentration of copper. This showed that the presence of copper in DSSCs made with a standard configuration – using a ruthenium complex (N3) as a dye and the redox pair ${\rm I}^{- } {\rm /I}_{{\rm 3}}^{- } $ as the electrolyte with 3‐methoxypropionitrile as a solvent – leads to improvements of up to 10% in the open‐circuit voltage of DSSCs.

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“…From n N3 and n J13 after soaking for 8 h, A N3 and A J13 are calculated as 0.423 and 1.42 nm 2 , respectively. A N3 has been previously estimated as 1.6 nm 2 for a monolayer of N3 on TiO 2 [20]. Since the molecular structures of N3 and J13 are similar, similar values can be expected if monolayers of N3 and J13 are formed of ZnO.…”

Section: Resultsmentioning

confidence: 85%