Dye Research.

Dye molecules in electrolytes: new approach for suppression of dye-desorption in dye-sensitized solar cells

The widespread commercialization of dye-sensitized solar cells remains limited because of the poor long-term stability. We report on the influence of dye-molecules added in liquid electrolyte on long-term stability of dye-sensitized solar cells. Dye-desorption from the TiO2 surface during long-term cycling is one of the decisive factors that degrade photocurrent densities of devices which in tu...

Dye Carcinogenesis*

With the use of 2.1 M sucrose solution, nuclei were isolated from normal, control, and azo preneoplastic livers, and from azo dye-inducedliver tumors of rats. Four consecu tive extractions of nuclear sap in isotonic saline-phosphate buffer solubiized 49 and 37 per cent of the nitrogen of liver and tumor nuclei, respectively. Velocity sedimentation analyses revealed that the soluble nuclear macr...

A Research Module for the Organic Chemistry Laboratory: Multistep Synthesis of a Fluorous Dye Molecule

A multi-session research-like module has been developed for use in the undergraduate organic teaching laboratory curriculum. Students are tasked with planning and executing the synthesis of a novel fluorous dye molecule and using it to explore a fluorous affinity chromatography separation technique, which is the first implementation of this technique in a teaching laboratory. Key elements of th...

Rapid Dye Regeneration Mechanism of Dye-Sensitized Solar Cells.

During the light-harvesting process of dye-sensitized solar cells (DSSCs), the hole localized on the dye after the charge separation yields an oxidized dye, D(+). The fast regeneration of D(+) using the redox pair (typically the I(-)/I3(-) couple) is critical for the efficient DSSCs. However, the kinetic processes of dye regeneration remain uncertain, still promoting vigorous debates. Here, we ...

Blue dye, blue skin.