Spray-on solar
Researchers at the University of Texas are developing solar photovoltaics 10,000 times thinner than human hair that can be spray-painted onto surfaces. The ambition of the project is to develop a solution of sunlight-absorbing nanoparticles that can be sprayed onto a surface to create a solar panel–a process similar to newspaper printing. The technology they’re working with uses copper indium gallium selenide instead of silicon and could be cheaper than fabricating conventional solar panels.
(via Inhabitat)