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Photos: Hi-tech solar innovations

By SmartPlanet on 17 October 2008, 10:58am

Thin-film cells are fast becoming competitive in solar photovoltaics. Because they use much less material than polycrystalline silicon, they can lower the cost significantly of solar electricity even though the cell efficiency is lower. Here is a string of cells from Global Solar Energy which are made from CIGS, a combination of copper, indium, gallium, and selenide.

Source: Photos: Solar business heats up the Golden State on CNET News

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