Let's get the facts straight:
"With this approach at the laboratory scale, Xu and colleagues were able to obtain a light-to-power conversion efficiency of 3.2 percent compared to 1.8 percent efficiency of conventional planar structure of the same materials."
3.2% is pathetic. A quick Google search reveals some polycrystalline Cadmium Telluride cells developed by the National Renewable Energy Laboratory that achieved 15% efficiency. It was published TWO YEARS AGO.
For once, FOR ONCE I'd like to see a genuine solar cell breakthrough that changes the industry. Not some BS press release that's only a thinly veiled attempt to generate some capital investment. I understand that science usually progresses in baby steps (especially in chemistry) but there's got to be a higher standard for informing the public about your research.