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IBM Creates High-Efficiency Natural Solar Cell

IBM has created a high-efficiency solar cell made from abundant materials.  The cell achieves 9.6 percent efficiency, which is cheap levitra generic 40 percent higher than other attempts at natural solar cells.

The cell is made from copper, tin zinc, sulfur and sellenium opposed.  Solar cells have been created with greater efficiency but they made with costly or rare materials that could hold back the technology.

IBM isn't planning on best viagra price manufacturing this technology itself though. It will be licensing the intellectual property related to buy cialis online uk the research to other companies who want to develop it.  A full report on this breakthrough is in this week's Advanced Materials.

via GoodCleanTech

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Not new
written by Mike, February 10, 2010
This is not new at all. Selenium has been used in photocells for 50 years or more, it was used as power supply rectifiers way back in the thermionic valve era.

Furthermore, selenium is chinese viagra buy a very nasty substance indeed. It is a very effective environmental poison.
What rare elements?
written by Jesse Williams, February 11, 2010
I'm a researcher that works on this exact material, and one of generic levitra mexico the reason it is so attractive is that none of the materials are rare. Copper, tin, zinc, sulfur... come on there very common elements.

@ Mike

These material don't contain much Se (unlike CIGS solar cells). Mostly they are made of S. However, I wanted to let you know that Se really isn't that toxic. If it is in the hydride form it is toxic, but in the elemental form it is fine and when it's reacted in the CZTS or CIGS compound it's certainly fine.
More information...
written by Adrian Miller, February 11, 2010
Thanks for the interest in this work! The other exciting factor in this particular work is where to get viagra the synthesis method; unlike other solar cell processes, it's not based on vacuum technology, so it's much simpler (and therefore cheaper!) to perform.

If anyone would like more information on the original research, we've set the Advanced Materials article free to access; you can find it here: I hope it's helpful!

Adrian Miller
Advanced Materials
@ Jesse
written by Kat M, February 11, 2010
I believe the article is saying that cells with higher efficiency are made with rarer elements: silicon, and such, I suppose, though the article is so poorly written and edited, I don't know.
written by Karkus, February 11, 2010
Silicon is one of the MOST abundant elements on the Earth (and in the Universe too)
Those other metals are way down the list.

It's very hard to define "natural" but I bet most people would consider sand and glass (which is Silicon and Oxygen) to be way more "natural" than the cialis in australia for sale metals listed above, esp. the toxic Selenium.

Check your facts please before spewing.

Granted, the amount of those metals needed to try it pfizer cialis canada make a solar cell are less than the amount of Si needed for a Si cell, but this post is still way off.
If the article was COMPLETE...
written by Kat M, February 11, 2010
I wouldn't have had to guess about what they meant.

"The cell is made from copper, tin zinc, sulfur and sellenium opposed." Opposed. Opposed to.... something? I'm not "spewing" when I say this is a poorly written and poorly edited article.

"Solar cells have been created with greater efficiency but they made with costly or rare..." "they made with?" Again with the missing words.
Stop nit-picking
written by Amy Thomson, February 11, 2010
While the article could be clearer, I understand that they're saying that IBM has found a way to make cheap solar cells that are relatively efficient. This is exciting news.

And as for selenium, as any Eco-Geek knows, sustainability is a balancing act. The mercury in compact fluorescent light bulbs is toxic, but the benefits of reduced energy use balance that out, especially if the bulbs are recycled. Too much selenium in the wrong form may be toxic, but it's also a necessary trace element. If we didn't ingest tiny quantities of Selenium from time to time, we'd get pretty sick.
written by Roger K Brown, February 12, 2010
Selenium is not an earth abundant element (10ppb by atomic percent compared to 22,000ppb for copper). It is mainly produced as a by product of copper mining. A dedicated selenium mine would be absurdly expensive.
written by case, February 15, 2010
finally big companies like IBM giving something back and helping the planet, if only more large companies would get involved

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