The nature and strength of the interactions between a cationic fluorophore, Rhodamine 123 (R123), and surfactants of different head charge are investigated. Series of absorption and fluorescence emission spectra and of fluorescence decays are measured. R123 does not interact with the monomers of both nonionic and cationic surfactants but it presents affinity to their micelles. A partition equil...

Continuous-wave generation of the anti-Stokes Raman laser is demonstrated in the new L scheme Ar II 3d8 G9/2→4p8 F7/2→4s8 D5/2 with quasimetastable initial and final levels. Red pump radiation with wavelength lp5611 nm from a dye laser that excites transition 3d8 G9/2→4p8 F7/2 is converted into the blue radiation at l5461 nm (4p8 F7/2→4s8 D5/2) with efficiency of about 30%. The tunability range...

In this work carbon based nanomaterials in ionic liquids have been studied as potential electrolytes for dye sensitised solar cells (DSSCs). Graphene, single wall carbon nanotubes (SWCNTs) and a mixture of graphene and SWCNTs were incorporated into 1-methyl-3-propylimidazolium iodide (PMII) ionic liquid. The resulting quasi-solid state electrolytes were sandwiched between TiO2 working electrode...

In this study, dye-sensitized solar cells (DSSCs) has been assembled with poly(1-vinylpyrrolidone-co-vinyl acetate) (P(VP-co-VAc)) gel polymer electrolytes (GPEs) which have been incorporated with binary salt and an ionic liquid. The potential of this combination was studied and reported. The binary salt system GPEs was having ionic conductivity and power conversion efficiency (PCE) that could ...