Solar power??

I have read about a new type of solar panel/material that is made up of five different metals (can't remember which ones) that are produced more inexpensively than silicon cells. Possible applications were in roof shingles, panels, they were even working on putting it into paint and window glazings. ANybody know about this material, its applications, and how efficient this material is compared to silicon cells, both in terms of cost and electrical production?