ScienceDaily: The sun's energy is virtually limitless, but harnessing its electricity with today's single-crystal silicon solar cells is extremely expensive -- 10 times pricier than coal, according to some estimates. Organic solar cells -- polymer solar cells that use organic materials to absorb light and convert it into electricity -- could be a solution, but current designs suffer because polymers have less-than-optimal electrical properties.
Researchers at Northwestern University have now developed a new...