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New Solar Material Captures Entire Spectrum of the Rainbow
Posted By Mike Chino On October 20, 2008 @ 5:00 am In Green Materials,Renewable Energy,Solar Power | 5 Comments
Scientists at the Ohio State Institute for Materials Research  recently announced that they have developed a new hyper-efficient solar material that is able to capture light from every spectrum of the rainbow . Whereas most photovoltaics  are limited to collecting energy from a small range of frequencies, the new material is able to absorb energy  from all spectrums of visible light at once. The breakthrough development heralds a new breed of extremely efficient solar panels on the horizon.
Sunlight contains the total spectrum of energy emitted by the sun, and visible light contains the range of wavelengths that we perceive as color. Whereas traditional photovoltaic materials only take advantage of certain wavelengths of light, Ohio State ‘s new material can capture energy from the entire visible spectrum, which results in tremendous gains in the amount of energy it can absorb.
The new electrically-conductive plastic includes materials such as molybdenum and titanium. It operates upon the same principles as standard photovoltaic materials, wherein light energizes the atoms of the material and knocks electrons free to generate a current. Whereas in traditional photovoltaics  the electrons are removed for a fraction of a second, in the new hybrid material the electrons are excited for much longer (7 million times) than before.
Malcolm Chisholm, Chair of the Department of Chemistry at Ohio State has said: “This long-lived excited state should allow us to better manipulate charge separation. . . There are other such hybrids out there, but the advantage of our material is that we can cover the entire range of the solar spectrum”.
Although the material is still several years from commercial development, the project is an exciting proof of concept and has received funding from Ohio State’s Targeted Investments in Excellence  program.
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URL to article: http://inhabitat.com/new-solar-material-captures-energy-from-every-color-of-the-rainbow/
URLs in this post:
 Image: http://www.inhabitat.com/2008/10/20/new-solar-material-captures-energy-from-every-color-of-the-rainbow/
 Ohio State Institute for Materials Research: http://imr.osu.edu/
 spectrum of the rainbow: http://www.inhabitat.com/2008/04/01/energy-crisis-solved-by-harvesting-rainbows/
 photovoltaics: http://www.inhabitat.com/2006/10/24/sunpower-new-super-efficient-solar-panels/
 energy: http://www.inhabitat.com/category/energy/
 photovoltaics: http://www.inhabitat.com/2007/09/20/british-team-develop-thin-solar-photovoltaics/
 Targeted Investments in Excellence: http://oaa.osu.edu/TIE2.php
 Cleantechnica: http://cleantechnica.com/2008/10/19/new-solar-power-material-can-capture-every-color-of-the-rainbow/
 Nano Techwire: http://nanotechwire.com/news.asp?nid=6773
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