Scientists come up with new method to develop Perovskites
According to scientists, they have developed a new method to develop a class of crystalline materials called as perovskites. It has a lot of potential that can be used in the clean energy world. A research team at Brown University said that perovskite in solar cells serves as outstanding light absorbers.
According to the team of researchers, this new way can help generate perovskite crystals using a solvent bath at regular room temperature. It will also prevent the requirement of a blast of heat that is needed in present methods of crystallization.
It has been informed that the technique can build high-quality films of perovskite and will also provide correct control of the thickness. It provides hints that mass production of perovskite cells can be created with the help of this method.
"People have made good [perovskite] films over relatively small areas - a fraction of a centimeter or so square", said researcher Nitin Padture, a professor of engineering.
According to the researchers, all the existing methods need heat and they have had to go to temperatures from 100 to 150 degrees Celsius. Padture said that this heating process causes problems.
A tendency has been included for the crystals to form with tiny pinholes all through the rest of the film in an uneven manner that decreases the efficiency of the cells. Utilization of heat during the process of crystallization puts a hurdle to the kind of substrates. Heat limits the substrates on which films can be deposited.
According to the researchers, flexible plastic substrates that are inexpensive cannot be used because they are damaged by high temperatures. The researchers said that technique is known as a solvent-solvent extraction approach (SSE).