Friday, July 1, 2011

Super-efficient, low-cost inkjet system to revolutionize solar energy technology

( The same technology used in your home or office printer to deliver ink to paper is now being used in a revolutionary new solar technology that eliminates 90 percent of raw material waste, and drastically cuts the costs associated with producing solar cells.

Engineers from Oregon State University (OSU) are well on their way to producing the first ever super-efficient, extremely low-cost solar film made from inkjet technology, which could make solar energy production a whole lot more efficient and cheaper for consumers
Published in the journal Solar Energy Materials and Solar Cells, the findings explain how CIGS solar devices -- CIGS being short for the copper, indium, gallium and selenium elements that compose them -- drastically reduce waste, significantly improve efficiency, and summarily revolutionize the way solar cells are produced, as well as how they perform.

...The technology is different from typical solar cell production in that it precisely prints the relatively inexpensive chalcopyrite compound, or CIGS, directly on film as thin as one or two microns -- and it does this without losing much energy, or wasting much of the element compound. Traditional solar technology, on the other hand, involves the use of more expensive compounds that are deposited using processes such as vapor phase deposition, which is very inefficient and ends up wasting most of the element compound.

"Some of the materials we want to work with for the most advanced solar cells, such as indium, are relatively expensive," noted Chang. "If that's what you're using, you can't really afford to waste it, and the inkjet approach almost eliminates the waste."

Besides being highly efficient and easy to produce, inkjet technology opens the door for the greatly expanded use of solar systems in building materials like roofing shingles, windows, and other surfaces exposed to regular sunlight -- the possibilities are endless.....


This in combination possibly with non-rare-earth metal solar technology and you have dirt cheap solar!

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