Physical meaning of the rheological coefficients in the generalized Casson model

Kirsanov, E. A.; Remizov, S. V.; Novoselova, N. V.; Matveenko, V. N.

doi:10.3103/s0027131407010051

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…Viscosity means the resistance of a fluid to flow, and it expresses the cohesion over a substrate at a precise temperature (often 25 C). Viscosity curve follows the well‐established behavior of viscous materials (Casson equation) . Shear stress is a tangential stress achieved by twisting the sample.…”

Section: Resultsmentioning

confidence: 94%

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Processing and characterization of a TiO₂ paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

Vesce¹,

Riccitelli²

2011

Progress in Photovoltaics

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The formulation and the preparation of a TiO2 paste for dye‐sensitized solar cell technology are proposed. The TiO2 paste is characterized in terms of rheology, morphology, cross section, specific surface area, and average pore size. A conversion efficiency of 7.42% without any chemical treatment or scattering layer was obtained using the optimal thickness of 11 µm as carried out in this work. The results over different batches of the paste confirm the stability and the reproducibility. The characterization of the TiO2 semi‐transparent film is completed by investigating the dye adsorption saturation time after cyclic dye dipping steps through UV–Vis spectra measurements. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 94%

“…Figure 1 shows viscosity and shear stress behavior of the made paste. Obviously, the sample does not have a Newtonian trend, but for shear rate greater than 5-7.5 s À1 , the curve [26]. Shear stress is a tangential stress achieved by twisting the sample.…”

Section: Characterization Of the Tio 2 Paste And Filmmentioning

confidence: 99%

Processing and characterization of a TiO₂ paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

Vesce¹,

Riccitelli²

2011

Progress in Photovoltaics

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“…For a low shear rate the viscosity does not permit the deposition but when the creep (tendency of a material to deform permanently) resistance is exceeded, the viscosity is quite constant. The viscosity (the resistance of a fluid to flow) plays an important role because it expresses the cohesion on a substrate [26] and follows the Casson equation of viscous materials [88]. The viscosity curves of a high efficiency printing paste based on small particle size powders show that by increasing the shear rate the creep resistance is overcome and the viscosity tends to be constant [26].…”

Section: Printing/coating Techniquesmentioning

confidence: 99%

The role of printing techniques for large-area dye sensitized solar cells

Mariani

Vesce²,

Carlo

2015

Semicond. Sci. Technol.

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The versatility of printing technologies and their intrinsic ability to outperform other techniques in large-area deposition gives scope to revolutionize the photovoltaic (PV) manufacturing field. Printing methods are commonly used in conventional silicon-based PVs to cover part of the production process. Screen printing techniques, for example, are applied to deposit electrical contacts on the silicon wafer. However, it is with the advent of third generation PVs that printing/coating techniques have been extensively used in almost all of the manufacturing processes. Among all the third generation PVs, dye sensitized solar cell (DSSC) technology has been developed up to commercialization levels. DSSCs and modules can be fabricated by adopting all of the main printing techniques on both rigid and flexible substrates. This allows an easy tuning of cell/module characteristics to the desired application. Transparency, colour, shape, layout and other DSSC's features can be easily varied by changing the printing parameters and paste/ink formulations used in the printing process. This review focuses on large-area printing/coating technologies for the fabrication of DSSCs devices. The most used and promising techniques are presented underlining the process parameters and applications.

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Properties of partially denatured whey protein products 2: Solution flow properties

et al. 2016

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Physical meaning of the rheological coefficients in the generalized Casson model

Cited by 6 publications

References 6 publications

Processing and characterization of a TiO₂ paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

Processing and characterization of a TiO₂ paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

The role of printing techniques for large-area dye sensitized solar cells

Properties of partially denatured whey protein products 2: Solution flow properties

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Physical meaning of the rheological coefficients in the generalized Casson model

Cited by 6 publications

References 6 publications

Processing and characterization of a TiO2 paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

Processing and characterization of a TiO2 paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

The role of printing techniques for large-area dye sensitized solar cells

Properties of partially denatured whey protein products 2: Solution flow properties

Contact Info

Product

Resources

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Processing and characterization of a TiO₂ paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes

Processing and characterization of a TiO₂ paste based on small particle size powders for dye‐sensitized solar cell semi‐transparent photo‐electrodes