Gratzel Cells.. the future?

Dye-sensitized cell - "GREEN Solar Cell":

• Made of low-cost materials and easy to manufacture
• Similar to photosynthesis (dye molecule has porphyrin ring as in Chlorophyll or Heamoglobin, hence non-toxic)
  
• Can be incorporated into tinted windows that trap light to generate electricity.
• Environmentally friendly because made from titanium dioxide – a plentiful, renewable and non-toxic white mineral, already used in toothpaste, white paints and cosmetics.
• In limited production by Konarka (Lowell, MA)

http://en.wikipedia.org/wiki/Dye-sensitized_solar_cells
http://www.publicaddress.net/default,4117.sm#post4117
http://www.technologyreview.com/read_article.aspx?id=17490&ch=biztech&sc=&pg=1
B. O’Regan and M. Gratzel: A low cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films. Nature 353, 737 (1991).
M. Gratzel: Photoelectrochemical cells. Nature 414, 338 (2001).
M. Gratzel: Dye-sensitized solar cells. J. Photochem. Photobiol. C4, 145 (2003).
U. Bach, D. Lupo, P. Comte, J.E. Moser, F. Weissortel, J. Salbeck, H. Spreitzer, and M. Gratzel: Solid-state dyesensitized mesoporous TiO2 solar cells with high photon-toelectron conversion efficiencies. Nature 395, 583 (1998).