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« The Rumors Are True, Gun Sales Through The Roof [Vinnie] | Main | Fake Messiah Takes A Shot At Elderly Widow [Kensington] »
November 07, 2008

RPI: solar collector breakthrough 96.21% light absorbent coating

RPI is calling this a "game changer". I don't know if I'd go that far, but boosting your ability to absorb light by just under 50% is pretty significant development.

...An untreated silicon solar cell only absorbs 67.4 percent of sunlight shone upon it — meaning that nearly one-third of that sunlight is reflected away and thus unharvestable. From an economic and efficiency perspective, this unharvested light is wasted potential and a major barrier hampering the proliferation and widespread adoption of solar power.

After a silicon surface was treated with Lin’s new nanoengineered reflective coating, however, the material absorbed 96.21 percent of sunlight shone upon it — meaning that only 3.79 percent of the sunlight was reflected and unharvested. This huge gain in absorption was consistent across the entire spectrum of sunlight, from UV to visible light and infrared, and moves solar power a significant step forward toward economic viability.

Lin’s new coating also successfully tackles the tricky challenge of angles....

I think, ahem, there may be other optical methods to dealing with the incidence angle issue that wind up cheaper to manufacture. In fact I know there are ;->


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posted by Purp at 08:56 PM

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