TECH - 3D printing is fun and futuristic, but how will it "revolutionise the solar energy industry"?

Writing in the Guardian, John Licata claims that 3D printed solar cells are "More efficient, less complex and cheaper, 3D solar cells can also capture more sunlight than conventional PV models." Why?

http://www.treehugger.com/clean-technology/3d-printing-fun-and-futuris