Ionic liquid type dye-sensitized solar cells: increases in photovoltaic performances by adding a small amount of water

Electrochemical behaviors of multivalent complexes in room temperature ionic liquids based on quaternary phosphonium cations

“…The handling of these TFSI-based RTILs is much easier than that of classical alkyl-substituted imidazolium chloroaluminate ILs [4]. Moreover, TFSI anion based ionic liquids are expected to be used for various practical applications, such as electric double layer capacitors [5,6], lithium ion batteries [7,8] and dye-sensitized solar cells [9,10]. For the TFSI anion, the nitrogen based aromatic and aliphatic cations such as imidazolium, pyridinium, pyrrolidinium, piperidinium and quaternary ammonium derivatives were generally used as a typical IL so far.…”

A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells

“…It is crucial for the cell stability that the encapsulation creates a barrier against water and oxygen ingress which can be assimilated by the electrolyte and the mesoporous sensitized TiO 2 layer. Conversely water has also been reported to enhance the power conversion efficiency performances of DSC based on ionic liquids [177]. The proportion of water in the cell can drastically modify the proton concentration in the electrolyte.…”

Prediction of Density, Surface Tension, and Viscosity of Quaternary Ammonium-Based Ionic Liquids ([N222(n)]Tf2N) by Means of Artificial Intelligence Techniques

“…[11] ILs such as bis(trifluoromethylsulfonyl)imide (Tf 2 N -) anion are known as attractive electrochemical solvents, [12][13][14][15] because they have many adaptable properties common to ILs, such as wide electrochemical window, high ionic conductivity, wide temperature range for liquid phase, high thermal stability, inflammability, negligible vapor pressure, high solvation capability, and rather high viscosity. [15,16] In some practical applications, such as electric double layer capacitors, [16,17] lithium ion batteries [15,18,19] and dye-sensitized solar cells, [20,21] the Tf 2 N À anion-based ILs have more operation in compared with other ILs. To provide vast opportunities for the optimization of properties toward lower viscosity, higher molar conductivity, and higher electrochemical stability for synthesized ILs, the Tf 2 N À anion was composed with different cations, such as imidazolium, pyridinium, pyrrolidinium, piperidinium, and quaternary ammonium derivatives.…”