FREE shipping to on qualifying orders when you spend or more. All prices ex. VAT.
We are currently open and operating as normal. Orders are being processed and dispatched on a daily basis. Click for more information.

K19 Dye


Product Code M2005A1
Price £187.00

Cis-bis(thiocyanato)(2,2'-bipyridyl-4,4'-dicarboxylic acid)(4,4'-bis(phexyloxystyryl)-2,2'-bipyridine)ruthenium(II), K19 Dye sensitizer, is ruthenium complex dye developed for high-efficiency dye-sensitized solar cells (DSSC). High extinction coefficient (18200 M-1cm-1) of K19 sensitizer enables realisation of a new generation thin-film dye-sensitized solar cells (DSCs) yielding higher conversion efficiency [1, 2].

It has been reported that solar cells employing the K19 dye in combination with a binary ionic liquid electrolyte gave over 7.0% efficiency with excellent stability under light soaking at 60°C for 1000 hours [5].

General Information

Full name Cis-bis(thiocyanato)(2,2'-bipyridyl-4,4'-dicarboxylic acid)(4,4'-bis(phexyloxystyryl)-2,2'-bipyridine)ruthenium(II)
Synonyms K19 sensitizer, Ru(4,4-dicarboxylic acid-2,2′-bipyridine)(4,4′-bis(p-hexyloxystyryl)-2,2-bipyridine)(NCS)2
Chemical formula C52H52N6O6RuS2
Molecular weight 1022.21
CAS number 847665-45-6
HOMO / LUMO n/a (Eg = 1.7 eV [1])
Solubility no data available
Classification / Family Transition metal complex, Ruthenium complex, Bipyridyl ligands, Energy materials, Dye-sensitized solar cells DSSC) materials, Donor materials, OPV materials.
K19 dye
Chemical structure of K19 Dye; Chemical formula: C52H52N6O6RuS2.

Product Details

Purity  >90% (1H NMR)
Melting point >300 °C
Appearance Dark brown powder

MSDS Documentation

K19 Dye MSDSK19 Dye MSDS Sheet

Literature and Reviews

  1. A High Molar Extinction Coefficient Sensitizer for Stable Dye-Sensitized Solar Cells, P. Wang et al., J. Am. Chem. Soc., 127, 808-809 (2005); DOI: 10.1021/ja0436190.
  2. High Molar Extinction Coefficient Heteroleptic Ruthenium Complexes for Thin Film Dye-Sensitized Solar Cells, D. Kuang et al., J. Am. Chem. Soc., 128 (12), 4146–4154 (2006); DOI: 10.1021/ja058540p.
  3. Structure/Function Relationships in Dyes for Solar Energy Conversion: A Two-Atom Change in Dye Structure and the Mechanism for Its Effect on Cell Voltage, B. C. O’Regan et al., J. Am. Chem. Soc., 131 (10), 3451–3458 (2009); DOI: 10.1021/ja806869x.
  4. Electron Transport and Recombination in Solid-State Dye Solar Cell with Spiro-OMeTAD as Hole Conductor, F. Fabregat-Santiago et al., J. Am. Chem. Soc., 131 (2), 558-562 (2009); DOI: 10.1021/ja805850q.
  5. Ruthenium Sensitizers and Their Applications in Dye-Sensitized Solar Cells, Y. Qin et al., Inter. J. Photoenergy, 2012, 291579 (2012); doi:10.1155/2012/291579.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

Return to the top