Comparison of electrochemical methods for triiodide diffusion coefficient measurements and observation of non-Stokesian diffusion behaviour in binary mixtures of two ionic liquids

Zistler, Markus; Wachter, Philipp; Wasserscheid, Peter; Gerhard, Dirk; Hinsch, Andreas; Sastrawan, R.; Gores, H. J.

doi:10.1016/j.electacta.2006.04.050

Cited by 131 publications

(99 citation statements)

References 32 publications

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“…[28] The diffusion coefficients of triiodide in this mixture over a range of 10 to 100% PMII at 25 8C are in the range of 1.79 Â 10 À7 to 1.35 Â 10 À7 cm 2 s À1 . As the triiodide diffusion coefficient decreases by only about 30%, whereas the viscosity increases by 1 000%, when going from 10 to 100 wt.-% PMII, the transport behavior of triiodide was nonStokesian.…”

Section: Ion Transport In Ionic Liquid Electrolytesmentioning

confidence: 99%

Solvent‐Free Ionic Liquid Electrolytes for Mesoscopic Dye‐Sensitized Solar Cells

Zakeeruddin

Grätzel

2009

Adv Funct Materials

431

311

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Ionic liquids have been identified as a new class of solvent that offers opportunities to move away from the traditional solvents. The physical‐chemical properties of ionic liquids can be tuned and controlled by tailoring their structures. The typical properties of ionic liquids, such as non‐volatility, electrochemical stability and high conductivity, render them attractive as electrolytes for dye‐sensitized solar cells. However, the high viscosity of ionic liquids leads to mass transport limitations on the photocurrents in the solar cells at full sunlight intensity, but the contribution of a Grotthous‐type exchange mechanism in these viscous electrolytes helps to alleviate these diffusion problems. This article discusses recent developments in the field of high‐performance dye‐sensitized solar cells with ionic liquid‐based electrolytes and their characterization by electrochemical impedance analysis.

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Section: Ion Transport In Ionic Liquid Electrolytesmentioning

confidence: 99%

Solvent‐Free Ionic Liquid Electrolytes for Mesoscopic Dye‐Sensitized Solar Cells

Zakeeruddin

Grätzel

2009

Adv Funct Materials

431

311

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“…To date, applications of binary RTIL mixtures are scarce but, for instance, they seem to be promising replacements for organic solvents in dye-sensitized solar cells [5,6]. One reason for their limited use so far is almost certainly the lack of data for relevant solvent properties.…”

Section: Introductionmentioning

confidence: 99%

How ideal are binary mixtures of room-temperature ionic liquids?

Stoppa

Buchner

Hefter

2010

Journal of Molecular Liquids

123

124

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Data for the densities, conductivities, viscosities and dielectric properties of binary mixtures of the tetrafluoroborate and the dicyanamide salts of 1-N-ethyl-3-N-methylimidazolium have been measured at 25• C. The mixtures exhibit practically "ideal" (linear) mixing behaviour with respect to viscosity, molar volume, and the effective dipole moment of the observed relaxation associated with cation reorientation, indicating a smooth change in the structure of the mixtures. On the other hand, the electrical conductivity and dielectric relaxation time deviate considerably from "ideal" mixing behaviour, indicating enhanced translational and rotational dynamics in the mixtures.

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“…S2), J lim reaches its highest values in the samples with low content of the organotalc (5 and 10 wt%). J lim affects the performance of the DSSCs by limiting the maximum J sc [26,41]. Here, it seems that J lim limits J sc only at higher talc-content.…”

Section: Effect Of Organotalc Content In Gel Electrolytementioning

confidence: 92%

Quasi-solid electrolyte with polyamidoamine dendron modified-talc applied to dye-sensitized solar cells

Andrade

Nogueira

Miettunen

et al. 2016

Journal of Power Sources

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Comparison of electrochemical methods for triiodide diffusion coefficient measurements and observation of non-Stokesian diffusion behaviour in binary mixtures of two ionic liquids

Cited by 131 publications

References 32 publications

Solvent‐Free Ionic Liquid Electrolytes for Mesoscopic Dye‐Sensitized Solar Cells

Solvent‐Free Ionic Liquid Electrolytes for Mesoscopic Dye‐Sensitized Solar Cells

How ideal are binary mixtures of room-temperature ionic liquids?

Quasi-solid electrolyte with polyamidoamine dendron modified-talc applied to dye-sensitized solar cells

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