Original article by By David L. Chandler, MIT News Office, appearing here: http://web.mit.edu/newsoffice/2012/three-dimensional-solar-energy-0327.html

Intensive research around the world has focused on improving the performance of solar photovoltaic cells and bringing down their cost. But very little attention has been paid to the best ways of arranging those cells, which are typically placed flat on a rooftop or other surface, or sometimes attached to motorized structures that keep the cells pointed toward the sun as it crosses the sky.

Read the full story here: http://web.mit.edu/newsoffice/2012/three-dimensional-solar-energy-0327.html.