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Prototype DSSC module

Dye Sensitized Solar Cells

Driven by our dedicated DSSC laboratories in Germany and Japan, we collaborate closely with strategic partners and maintain a worldwide scientific network of leading researchers. We focus on the development, characterization and manufacturing of dedicated materials and material concepts to raise overall module stability and performance to the levels required in the overall photovoltaic industry. DSSC technology presents an ideal opportunity to be deployed complementary to already established photovoltaic technologies. Depending on the "Variations of the technology", the markets for DSSC technology can be roughly divided into indoor and outdoor applications.

Working principle DSSC based on liquid electrolytes

DSSC Based on Liquid Electrolytes

As in photosynthesis, a dye plays a key role in the DDSC technology in the conversion of light energy into electricity. The dye is excited by the absorption of a photon and injects electrons into the mesoporous, nanocrystalline titanium dioxide layer. The electrons are subsequently transported to and collected at the transparent anode. At the counter electrode the electrons are transferred to a redox-active liquid electrolyte (iodide/triiodide based). The charge then diffuses through the electrolyte, ultimately regeneration the oxidized dye.

The technology can be realized with both rigid and flexible substrates making it an ideal candidate for a variety of application. 


DSSC Based on Solid Electrolytes

Alternatively, the liquid electrolyte can be substituted with a solid hole transport material to create a fully solid state DSSC. This concept offers benefits over the liquid alternative: the risk of solvent leakage or corrosion from iodine based electrolytes is removed. Furthermore, a solid state device is even more suitable for flexible applications. Recent research programs are focusing to advance this concept in order to achieve the same performance as the liquid based technology. 
For this approach, spiro-MeOTAD has proven to be the most successful material due to its charge carrier mobility, amorphous nature and high solubility. It is available under the product name SHT-263. EMD is actively developing new compatible hole transport materials with an aim to enable even more efficient devices.

DSSC Brands

Our Solarpur® electrolyte components for DSSC applications meet the highest purity standards regarding water and other impurities required for this technology. Understanding the need of our partners to initially have control over all components of the DSSC product, we support your design flexibility by offering state-of-the-art chemicals suitable for DSSC applications. 
The high quality of the Solarpur® chemicals is the basis for our livion® customized and standard electrolytes ensuring the high DSSC quality requirements.
Our livion® electrolytes are being developed to increase the performance and durability of DSSC applications and are offered either as pre-mixed standard or dedicated customer based electrolyte. 
All materials used for our livion® electrolytes have been selected via our Solarpur® based quality system to ensure the high DSSC quality requirements.

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