May 24, 2017 04:18 PM EDT
Researchers from Lund University and Fudan University have successfully designed a new structure of solar cell material using perovskite. This study is all about, how to increase the efficiency of solar panel and researchers are very thankful for the material's ability to self-organize by standing on edge.
It is a known fact that the world is under huge requirements of energy in modern days. Under search requirements, the conservative source of energies will go to end up very quickly. In order to stop that a backup source energy can be very necessary and solar cell can be a perfect backup.
However, this current research study deals with perovskite, a perovskite is a kind of material with the same type of crystal structure as calcium titanium oxide. This material is very sensitive to moisture and simple dissolve in water, Phys.Org reported. In normal humidity, the material deteriorates itself within few hours or minutes.
To overcome this problem lead researchers Tonu Pullerits successfully produced thin sheets with a water-repelling surface and made the whole construction much more stable. In addition, they also have succeeded in orienting the sheets so as to obtain acceptable solar cells, with an efficiency of ten percent.
Moreover, to achieve the water repelling surface, researchers not only create thin sheets, but they also discovered self-organized perovskite sheets that clearly increased efficiency. Now the sheets are too thin, in order to absorb sunlight it needs to be layered on top of each other, Science Newsline reported.
At this point, one more problem arises that the water-repelling surfaces do not allow electrons to circulate freely within the material. That means it is very difficult to jump electrons from one sheet to another sheet and it has also a drawback that is, it reduces the solar cell efficiency.
Again researchers back together and tested two different water-repelling surfaces. They expected that one version definitely gives a better result, after enabling the electrons to jump more easily from one sheet to another. Surprisingly, they found the outcome was opposite and second version gave much better output.
Self-organized sheets are actually a better way because it stands on the edge instead of lying flat against one another. For that reasons the electrons are able to move freely between the contacts, considerably increasing the efficiency of converting the solar energy to electricity.
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