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Black solar cells have lowest reflectance for silicon solar cells

5/29/2012 12:28 PM EDT
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Sanjib.A
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re: Black solar cells have lowest reflectance for silicon solar cells
Sanjib.A   5/31/2012 4:24:48 PM
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@mac_droz, thanks for detailed calculation. Actually I relied on the sentence: "...A tenfold reduction in reflectance would mean that up to 3 percent more usable light would get into the cell, effectively increasing the cell efficiency by that amount." From above it sounds like an increase of ~3% efficiency...your opinion?

mac_droz
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re: Black solar cells have lowest reflectance for silicon solar cells
mac_droz   5/31/2012 7:52:03 AM
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Read it again. Standard cells reflect 3% of light, new ones reflect 0.3% of light. You have to take efficiency into consideration. New ones will allow around 2.7% of light more to enter the cell and increase the overall efficiency by: 2.7% x (cell efficiency) For 15% efficiency (pretty good) that gives us: 2.7% x 15% = 0.4% increase in output Good idea but small impact at the end. Might be a bit better for cloudy days (not much).

selinz
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re: Black solar cells have lowest reflectance for silicon solar cells
selinz   5/31/2012 6:10:35 AM
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While all improvements are good, it begs the question: can this be produced at same or less cost than the technology that it "betters?"

Sanjib.A
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CEO
re: Black solar cells have lowest reflectance for silicon solar cells
Sanjib.A   5/29/2012 5:25:39 PM
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An increase of 3% in efficiency with lower cost is a good news! Is there any idea how much lower the cost would be with this technology?

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