Improved Approaches Make Better Use of Sunlight
Semiconductor International reports that September’s “The Economist” outlined three novel approaches to increase the efficiency of non-silicon based solar cells. The scarcity of silicon is the main reason for the high price of solar energy, yet its high efficiency at conversion of sunlight into power has kept it as the main ingredient in solar cells.
The alternative approaches include using titanium oxide to increase the conductivity of plastics, creating dye-sensitised solar cells that mimic the photosynthesis of plants, and applying a hair-like coating of carbon nantubes to cadmium sulphide, zinc oxide and titanium dioxide based solar cells.
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