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  • 703168 - cis-Bis(isothiocyanato)(2,2′-bipyridyl-4,4′-dicarboxylato)(4,4′-di-nonyl-2′-bipyridyl)ruthenium(II)

703168 Aldrich


95% (NMR)

Synonym: Z-907 dye



Related Categories Dye Sensitized Solar Cell (DSSC) Materials, Dyes, Materials Science, Organic Photovoltaic (OPV) Materials, Organic and Printed Electronics More...
assay   95% (NMR)
composition   Dye content, ≥90%
mp   196 °C
absorption   531, 314, 295 nm(lit.)


Frequently Asked Questions

Frequently Asked Questions are available for this Product.


High-performance ruthenium-based dye used in dye-sensitized solar cells (DSCs) for the sensitization of Titania. Hydrophobic character due to the presence of C9 alkyl chains.


1 g in glass bottle

Legal Information

Product of Dyesol® exclusive supplier of Sun2 products under license from EPFL.

Dyesol is a registered trademark of Dyesol Ltd.

Protocols & Applications

Efficent DSSCs for Direct Conversion of Sunlight to Electricity

Price and Availability

Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
What are the advantages of dye solar cells?
Dye solar cells (DSCs) are 3rd generation solar cells with the promise of high efficiency combined with low production costs.
How does a dye solar cell work?
Details can be found on our website at the following link:  http://www.sigmaaldrich.com/materials-science/organic-electronics/dye-solar-cells.html
What can cause degradation of the dye solar cell?
Dye solar cells degrade from ultraviolet radiation.  For this reason, the barrier may include UV stabilizers and/or UV absorbing luminescent chromophores (which emit at longer wavelengths) and antioxidants to protect and improve the effieciency of the cell.
What are the disadvantages of dye solar cells?
The major disadvantage to the dye solar cell design is the use of a liquid electrolyte, which has temperature stability issues. The electrolyte can freeze at low temperatures and expand at higher temperatures.  It the electrolytes freezes, power production would cease, and it could potentially lead to physical damage.  If the liquid expands at higher temperatures, sealing the panels would be difficult.
How can I obtain a UV-Vis spectrum of cis-Bis(isothiocyanato)(2,2′-bipyridyl-4,4′-dicarboxylato)(4,4′-di-nonyl-2′-bipyridyl)ruthenium(II), Product 703168?
A UV-Vis spectrum for this dye can be found on our website at the following link:  http://www.sigmaaldrich.com/materials-science/organic-electronics/dye-solar-cells.html
Show more questions
Protocols & Articles


Efficient Dye-Sensitized Solar Cells for Direct Conversion of Sunlight to Electricity

Sunlight is an abundant natural resource and for many decades scientists have been interested to find ways and means of harnessing the energy from the sun. Researchers have explored many processes wh...
Kuppuswamy Kalyanasundaram, Michael Grätzel
Material Matters 2009, 4.4, 88.
Keywords: Absorption, Applications, Bacterial conjugations, Calorimetry, Capillary electrophoresis, Degradations, Electronics, Help, Infrared spectroscopy, Ligands, Oxidations, Recombination, Reductions, Semiconductor, Separation, Solar cells, Solvents, Tools, Type

Optoelectronic Devices Based on Diketopyrrolopyrrole (DPP)-containing Conjugated Small Molecules

Optoelectronic devices such as light-emitting diodes (LEDs), solar cells, and light-emitting field effect transistors (FETs) that utilize organic materials as their light harvesting and/or charge tra...
Jianhua Liu and Thuc-Quyen Nguyen
Material Matters 7.1
Keywords: Absorption, Alkylations, Applications, Bacterial conjugations, Biochemistry, Brominations, Building blocks, Capabilities, Nucleic acid annealing, Nucleic acid hybridization, Purification, Recombination, Solar cells, Solvents, Spectra, Spectroscopy, Stille coupling, Support, Suzuki coupling, Type, Ultraviolet-Visible spectroscopy

Ruthenium-Based Dyes for Dye Solar Cells

Dye solar cells (DSCs) are third generation solar cells with the promise of high efficiency combined with low production costs. While present day DSCs provide light-to-electricity conversion of up to...
Material Matters 2008, 3.4, 99.
Keywords: Material Matters, Oxidations, Solar cells

Ruthenium-based dyes for Dye-sensitized Solar Cells

Dye-sensitized Solar Cells (DSCs) are 3rd generation solar cells combining the promise of high efficiency with low production costs. While present-day DSCs provide light-to-electricity conversion of ...
Dr. Hans Desilvestro and Dr. Yanek Hebting

Dyesol Ltd., 3 Dominion Place, Queanbeyan NSW 2620 AUSTRALIA
Keywords: Absorption, Calorimetry, Capillary electrophoresis, Ligands, Materials Science, Oxidations, Photosynthesis, Recombination, Reductions, Separation, Solar cells

Synthesis of ZnO Aggregates and Their Application in Dye-sensitized Solar Cells

Solar energy, as the primary source of energy for all living organisms on Earth, is considered the ultimate solution to the energy and environmental challenge as a carbon-neutral energy source. Many ...
Qifeng Zhang, Kwangsuk Park, Guozhong Cao
Material Matters 2010, 5.2, 32.
Keywords: Absorption, Adsorption, Atomic layer deposition, Calorimetry, Centrifugation, Chemical reactions, Degradations, Deposition, Diffraction, Diffusion, Environmental, Hydrogenations, Ligands, Materials Science, Methods, Photovoltaics, Precipitation, Recombination, Scanning electron microscopy, Semiconductor, Solar cells, Spectra, Spectroscopy, Type, Usage, X-Ray diffraction

Understanding and Successfully Applying Materials for Dye-Sensitized Solar Cells

Hans Desilvestro, Yanek Hebting, Mikael Khan, Damion Milliken Dyesol, Queanbeyan NSW 2620, Australia Email: yhebting@dyesol.com
Keywords: Absorption, Adhesion, Adsorption, Bacterial conjugations, Calorimetry, Deposition, Diffusion, Electronics, Extinction coefficient, Hydroxylations, Ligands, Mass spectrometry, Nucleic acid annealing, Oxidations, PAGE, Printed electronics, Recombination, Reductions, Semiconductor, Solar cells, Solvents

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