18 Aug '11, 7am

Better Yield from Solar Harvest

Better Yield from Solar Harvest

When sunlight hits the semi-conductor material, it results in charge carriers — electrons — and the more the better, because that generates more electric current. The wavelength of the light in question directly affects the amount of power that can be generated. The most efficient conversion is at a wavelength of 1000 nanometers, or infrared light. If the wavelength is shorter — like, say, daylight — the electrons respond by carrying an extra jolt of energy (this is what makes them “hot”).

Full article: http://cleantechnica.com/2011/08/17/better-yield-from-sol...

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