voor wie de Graetzel cel niet moest kennen:
Citaat:
Swiss wins million-dollar prize for low-cost solar cells
(AFP) – Jun 9, 2010
HELSINKI — A Swiss professor who developed a low-cost solar power cell using cheap materials such as dye squeezed from berries won a million-dollar technology prize in Finland on Wednesday.
Michael Graetzel, 66, won the Millennium Technology award for process of "artificial photosynthesis" to capture the sun's energy without need for an elaborate manufacturing process.
The so-called "Graetzel's cell" is made from a layer of titanium dioxide nanoparticles, covered with a molecular dye that absorbs sunlight, like the chlorophyll in green leaves.
The prized technology is seen as a cost-effective and promising alternative to standard silicon photovoltaics that could help solve the world's energy problems, the Technology Academy of Finland said in a statement.
"Though Graetzel cells are still in relatively early stages of development, they show great promise as an inexpensive alternative to costly silicon solar cells and as an attractive candidate as a new renewable energy source."
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Paul