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Re: Republican National Convention (Sept. 1-4)
Old 09-05-2008, 10:42 AM   #7
manasecret
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Default Re: Republican National Convention (Sept. 1-4)

Quote:
Originally Posted by Professor S View Post
And Mana, I'm also very curious to hear more about these new cells. I have my doubts as to their efficiency, but at least they definitely will not be as fragile or as expensive. Its a great step forward. Do you have a link?

Found a linK

http://www.sciencedaily.com/releases...0326131312.htm

10% efficiency. Its a good first step, but they have a LONG way to go.
Looks like I got my solar cell advances mixed up. The "ink-jet" type I was referring to is actually the nanotube type that KG mentioned before me. The flexible type that I showed a picture of are different.

Found a link on the nanotube solar technology:

http://www.scientificblogging.com/ja..._panels_really

From that article, it seems there are three main types of solar cells, listed here in order of highest efficiency

1. Quantam Dot -- supposedly a theoretical limit of 60% efficiency
2. Silicon-based -- the traditional ones that everyone knows and loves, with a theoretical limit of 33% efficiency
3. Thin-film -- the flexible type in the photo above. The theoretical efficiency isn't mentioned, but right now they are lower than silicon-based cells at less than 15% vs. about 22% for silcon-based cells.

The interesting part about these Buckyball-nanotube concoctions is that supposedly they can be added to any of the three types of solar cells to improve their efficiency. So that means theoretically the efficiency of quantum dot cells could be even higher than 60%.
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