Friday, May 27, 2011

What is a Dye Sensitized Solar Cell (DSSC)

The electrochemical dye solar cell was invented in 1988 by Professor Graetzel of Lausanne Polytechnique, Switzerland. The “Graetzel” dye cell is based on a layer of nano-sized titanium dioxide particles impregnated with dye. Dye cells have been a subject of intense academic interest as more than 50 university research teams around the world have worked to enhance their lifetime, size and efficiency.

Dye cells generate electricity from solar energy using nano-sized titanium dioxide particles impregnated with dye, rather than silicon or similar semiconductors. Using DSSCs will result in unprecedented low costs, both manufacturing line capital cost and module cost per peak watt (ppw). Other solar cell technologies (silicon, thin film) rely on complex vacuum deposition techniques for cell active layer preparation. Not only is the production line for these systems large, complex and very expensive, but the raw materials (such as silicon) are costly and undersupplied. By comparison, dye requires simple equipment (screen printing, air ovens) and benign materials like Titania powder available at low cost.

Like Torrey Hills on Facebook and receive updates on newly published contents and whitepapers

www.facebook.com/torreyhillstechnologies

No comments: