A research group led by Professor Shinsaburo Ito of Kyoto University analyzed the power generation mechanism using a solar cell made of a substance called perovskite.As a result, it has become possible to develop a battery that combines the advantages of two types of solar cells.
In this research, we analyzed the power generation mechanism using a solar cell made from perovskite.As a result, it was found that there is no energy loss in the process of converting the absorbed light into an electric current.From this, high efficiency can be expected.On the other hand, when carefully observing the flow of electrons, which is the source of the electric current, it was found that the electrons that flowed out due to the phenomenon of recombination were stranded.
I was able to obtain the guidelines for improving efficiency obtained in this way.If recombination can be completely suppressed, the power generation efficiency can be expected to reach 25%, which is about the same as that of inorganic solar cells.This shows the way to the realization of high-efficiency and low-cost solar cells.