24 May '12, 2pm

Solar Power Breakthrough: New Inexpensive, Environmentally Friendly Solar Cell

Solar Power Breakthrough: New Inexpensive, Environmentally Friendly Solar Cell

A new solar cell that is cheap, environmentally friendly, and durable has been developed by researchers from Northwestern University. The solar cell is the first to solve the problem of the Grätzel cell, a low-cost, environmentally friendly solar cell that has one significant disadvantage — it leaks and causes corrosion of the solar cell itself. Grätzel cells use a molecular dye to absorb sunlight and then convert it to electricity, in a similar way to chlorophyll in plants. The cells generally don’t last longer than 18 months though, and they are quite inefficient, making them commercially nonviable. People have been looking for a solution to this problem for two decades. The researchers’ solution was to use a new material for the electrolyte that starts as a liquid but ends up as a solid, eliminating the problem of leakage. “The Grätzel cell is like having the concept fo...

Full article: http://planetsave.com/2012/05/24/solar-power-breakthrough...

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New Inexpensive and Environmentally Friendly Solar Cell

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