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.
Labels: solar power
posted by Dahcredyns @ 5:08 PM
2 comments
2 Comments:
While quantum dots on photovoltaic cells vastly improves their efficiency, there is the problem of increased cost. Looking at this site, quantum dots just aren't cheap. Would the benefits ouweigh the increased cost, and finally let solar beat out wind generation?
Unfortunately, that's the case with too much of solar power. Eventually, that one big breakthrough will occur, I just don't know that it will happen until energy costs, especially petroleum-based fuels, spike again.
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