Are quantum dots the key to solar cell efficiency?

According to a University of Idaho chemistry professor a compound called "quantum dots" could be the key to solar cell efficiency. Made of "elements that include copper, indium and selenium", the quantum dot could be "embedded between layers of a solar cell and would absorb energy that is otherwise wasted due to overheating," according to Chemist Pam Shapiro. (more)

"These solar cells based on quantum dots aim to make better use of that excess energy," Shapiro said. Based on early research Shapiro believes that quantum dots could more than double the current efficiency of solar cells - an achievement that wouldn't just make solar power cost-effective, but cost competitive.

With cities in states such as California committing their futures to solar power, such breakthroughs are certain to receive the needed funding to achieve reality.