Di-tetrabutylammonium cis-bis(isothiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato)ruthenium(II), N719 dye (CAS number 207347-46-4), is the ammonium salt of N3 dye. With changes to increase cell voltage and solubility in polar solvents comparing with N3 dye, N719 dye is also one of the most common high performance dyes that are developed for DSSC solar cells.

N719 dye has the following features:

• Amphiphilic
• Increased electrostatic binding onto the TiO2 surface at lower pH values
• Increased stability
• Increased oxidation potential leading to deeper HOMO energy levels and enhanced stability

Ruthenium bipyridine complex

A high performance dyes used in DSSCs

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Amphiphilic and stable

increased electrostatic binding to TiO2 and oxidation potential

High purity

>97%

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