Organogels ionic liquids

In this chapter we introduced molecular self-assembly, which is becoming growing research area in the chemistry of ionic liquids. Our own earlier reports [6, 35] had touched off a burst of research on molecular assembly in ionic liquids and ionogel formation. A cholesterol-based organogelator. Scheme 11.9, was shown to induce... 

DSSCs prepared from this quasi-solid-state ionic liquid gel were stable under light at 60 °C for 1,000 h and had an efficiency of 6.3 % under simulated AM 1.5 frill sunlight, and the gelator had no influence on the performance of the solar cell. It was proposed that, after complete dissolution of the organogelator at elevated temperatures, the gelator molecules built up nanoscale fibrils due to the formation of hydrogen bonds by the amide and urea units and thus formed a three-dimensional network. This led to gelation of the ionic liquid mixture and hindered flow of the liquid. 

Moreover, the gelling water can be freely replaced with ionic liquids and organic fluids, affording novel iono- and organogels. 

An efficient organogelator for ionic liquids to prep>are stable quasi-solid-state dye-sensitized solar cells. J. Mater. Chem., 16,2978-2983. 

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