A Korean firm, Kyosemi Corporation, has developed a highly efficient spherical solar cell. It's called the Sphelar and represents a huge leap forward in solar development.
Instead of conventional solar cells which lay flat and only have 1 surface to collect the sun's energy, these spheres, measuring between 1-1.5mm in diameter, will be able to harness the energy from most of their whole surface. This also gives their panels flexibility as their structures do not need to be rigid, allowing them to be used in more applications than conventional PV. As an added bonus these cells do not block light and can therefore be embedded in clear objects without fully compromising clarity, giving energy producing windows a chance.
Physorg reports that "the Sphelar is made by a process of melted silicon that is subjected to free fall, whereby spheres are created naturally by the microgravity conditions. The result creates little or no waste of raw materials. This feature is cost effective and provides efficient use of the rare component silicon."
No word yet on their electrical production potential, but we'll certainly keep our eyes out for this one and report back to you. World Changing has a fantastic interview with Kyosemi's lead engineer. Check it out for a great read.
written by disdaniel, October 15, 2007
written by Dan Hahn, October 15, 2007
Like real free fall?
written by Nicholas, October 16, 2007
Thanks for the pointer to a great interv
written by weee, October 16, 2007
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