In Solar Cells, Tweaking the Tiniest of Parts Yields Big Jump in Efficiency

In Solar Cells, Tweaking the Tiniest of Parts Yields Big Jump in Efficiency

Reference- http://www.sciencedaily.com/releases/2012/01/120120184534.htm

Summary- The idea of embedding quantum dots into solar panels is not new. According to Mitin scientists had proposed about a decade ago that this idea could improve efficiency. It could improve efficiency by allowing panels to harvest invisible infrared light in addition to visible light. However the intensive efforts in this direction have previously met with limited success. The built in charge is beneficial because it repels electrons forcing them to travel around the quantum dots. Otherwise the quantum dots create a channel of recombination for electrons in capturing them and moving electrons and preventing them from contributing to electric current.

Critique- The idea of the quantum dots into solar panels may not be new according to Mitin scientist but it could improve efficiency of solar cells up to 45 percent.

Impact- The technology that has the potential to increase the efficiency of solar cells up to 45 percent.