Kyosemi Corporation is developing solar cells consisting of 1mm spheres on a flexible substrate.
More information on the Sphelar solar cells: production process, main features, overview (PDF):
In mid-2006, Kyosemi Corp. plans to begin full-scale mass production of its Sphelar spherical micro solar cell at its Eniwa Operation in Eniwa City, Hokkaido, Japan.
While existing planar solar cells [...]