bonch (38532) writes "Researches at Northwestern University have developed an inexpensive solar cell intended to solve the problems of current solar cell designs, such as high cost, low efficiency, and toxic production materials. Based on the Grätzel cell, the new cell uses millions of light-absorbing nanoparticles and delivers the highest conversion efficiency reported for a dye-sensitized solar cell." Link to Original Source
The only possible interpretation of any research whatever in the `social
sciences' is: some do, some don't.
-- Ernest Rutherford