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University of Texas's nanoparticled-based solar ink can be applied to a prepared surface with a standard airbrush.   (Source: Cockrell School of Engineering/University of Texas at Austin)
Solar power just a spray away.

Though solar power and more specifically, photovoltaic construction have improved vastly in just a few years, two of the factors that have always made solar power a non-viable alternative energy source for consumers and providers alike are its cost and its lack of physical installation flexibility. Fortunately these are the very two things that have seen rapid progress.

As long ago as March of 2008, research has been surfacing from various institutes working on what can only be described as solar ink. Konarka Technologies Inc showed its offering as an organic ink able to be printed on several surfaces which before were unusable due to their lack of compatibility with inorganic semiconductors.

This month, researchers at the University of Texas at Austin have published work with another type of printable photovoltaic ink. Rather than being organic molecule-based, the UT group's ink uses a copper indium gallium selenide (CIGS) nanopartical solution. The CIGS solution is both less expensive to manufacture than silicon-based inks and environmentally friendly.

Thus far the researchers have produced prototype cells that produce electricity at about 1% efficiency. This is far too low to be commercially viable and the intent is to push the number to 10% efficiency, bringing the ink up to par.

The inks can be applied to various surfaces by simply painting them on. Konarka touts an inkjet printer process, while UT's ink can simply be sprayed or roll printed on several surfaces, including plastic and stainless steel.

Another interesting property of the UT inks are that they are semi-transparent after the printing process. This could lead to layers of the photovoltaic in innocuous places like skylights or tinted car windows. Or perhaps, combined with new University of Illinois flexible LED technology, could be used to create self-powered display systems for any number of practical applications.





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RE: Why is this news?
By acase on 8/25/2009 9:59:33 AM , Rating: 3
I'm not sure why it is news, but at least it was a fairly well written, informative article. I don't even think I saw any errors, except maybe for a few missed commas. It also had a tolerable amount of opinions. Give this man Mick's job.


RE: Why is this news?
By kattanna on 8/25/2009 11:06:59 AM , Rating: 1
quote:
Give this man Mick's job


when mick first started, i felt it was in response to counter the view of masher at the time. and mick, for the most part back then, did a "decent" job of it. once masher left, mick seemed to become much more tabloid like in his "reporting"

i half feel that the site owners might have even approved as it probably initially brought in extra page views.

with all that said, i dont want to see mick replaced per se, but return to a more genuine reporter like ways, which could be nothing more then a pipe dream.


"And boy have we patented it!" -- Steve Jobs, Macworld 2007
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