Breaking News
News & Analysis

Black solar cells have lowest reflectance for silicon solar cells

5/29/2012 12:28 PM EDT
4 comments
NO RATINGS
More Related Links
View Comments: Newest First | Oldest First | Threaded View
Sanjib.A
User Rank
CEO
re: Black solar cells have lowest reflectance for silicon solar cells
Sanjib.A   5/31/2012 4:24:48 PM
NO RATINGS
@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
User Rank
Rookie
re: Black solar cells have lowest reflectance for silicon solar cells
mac_droz   5/31/2012 7:52:03 AM
NO RATINGS
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
User Rank
CEO
re: Black solar cells have lowest reflectance for silicon solar cells
selinz   5/31/2012 6:10:35 AM
NO RATINGS
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
User Rank
CEO
re: Black solar cells have lowest reflectance for silicon solar cells
Sanjib.A   5/29/2012 5:25:39 PM
NO RATINGS
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?

August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Flash Poll
Radio
LATEST ARCHIVED BROADCAST
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.