Super Rare
Wednesday, July 9th, 2008
Super-thin Solar Cells Ready to Replace Photovoltaic Cells
It might sound curiously strange but according to the scientists it is a possibility. The possibility is that we could see, very soon, a rare type of super-thin solar cells which would be printed on plastic sheets which can be rolled or on the window glasses. Of course, the glasses need to be transparent, partially, according to them.
These super-thin solar cells are said to be more effective and user-friendly than the existing and cost-effective photovoltaic cells. Though the photovoltaic cells have always remained efficient, their main draw back is that they can't be incorporated into different panel designs with much ease.
A team of researchers at the University of Illinois, headed by John A. Rogers, has devised this unique solar cell. The team says that this cell could be combined in flexible arrays. Amazingly, these arrays could be partially transparent, though sometimes.
As a matter of interest, experts have given this rare innovative process a bizarre name too - "the rubber-stamp approach."
However, the basic formula of making these cells are somewhat similar to that of photovoltaic cells. Like most of the photovoltaic cells, the super-thin solar cells too have p-n junctions- a compulsory feature in almost every photovoltaic cell.
While making, the scientists use a block of single-crystal silicon. On this piece of silicon, a semiconductor, they make a pattern of micro bars.
Notably, these micro bars, arranged according to a patterned gap, have a thickness of a few micrometers only.
Technically, the method, the scientists use, of making these cells is much more complex and demanding. It is a type of etching process. The blocks, after being made using silicon, are transferred to get printed on the substrates of other materials.
This technique is a time taking event and can be finished in many steps. When the bars are printed on the substrates, it requires a metal grid, as an electrical connector, to cover the structure which leads to electrical connections.
There is no doubt that these innovative and optimized ultra-thin solar cells are going to cause a revolution in the field of solar cells. Moreover, it is going to be too cost-effective. The key to the success of this technology lies in the wide-scale production of these cells.
About the Author
Pattrick is working as an industry analyst in the electronics and electrical industry for last fifteen years. He is working on a blog MyElectronicsBlog where you can get a lot of information on electronics industry, news, innovations, tradeshows, etc. . He is associated with one of the best electronics and electrical industry marketplaces Digitivity.com.
Justin Bieber - Super Rare Interview - Aged 14
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