Efforts to improve the efficiency of photovoltaic solar cells have been going on for decades. The challenge is to boost their capacity to convert sunlight into electrical power, while making them cheaper to produce. Conventional solar cells indeed require very pure silicon, an expensive material. Prof. Grätzel works on dye-sensitized solar cells (DSCs). In these cells, silicon is replaced by a dye or a coloured pigment used as a light harvester. As sunlight touches the cell, an exchange of electrons from the dye to the substrate produces electricity.
from EUROPA - Syndicated Research News Feed http://ift.tt/1GvWd3F
via IFTTT
No comments:
Post a Comment