The site is in test mode



11:29 / 2020-06-02

The vast majority of the exploited now solar panels using silicon solar cells. However, the energy conversion efficiency of such semiconductors is already close to the natural limit. Therefore, scientists are exploring new materials that will help to make solar panels more energy efficient. One of the most promising developments is recognized halogenide perovskites.

In just ten years of research managed to create perovskite solar cells, which converts into electricity, which is 25.2% of the energy received from the Sun. For silicon batteries to achieve the values of the same indicator in 26.7% it took about forty years.

A significant drawback of solar cells from perovskite — low durability. When the heat and humidity perovskite compounds begin to leach the gas and to decompose. Because of this, the commercial use of such devices was impossible. But Australian scientists have found a simple way to dramatically increase the stability of the perovskite. To protect the solar cells was sufficient to hermetically cover their inexpensive polymer glass.

This modified perovskite items can supply to pass the difficult tests set by the International electrotechnical Commission. Her techniques involve the checking of products at temperatures from -40 to +85°C and a relative humidity of 85%. Experimental solar cells have successfully survived more than 75 days of test for heat and 75 cycles of freezing carried out at high humidity.

Thus, they first for elements of the perovskite were able to exceed the requirements of the standard IEC 61215:2016. Scientists believe that the study will contribute to the development of mass production of perovskite solar cells and improve the prospects of their commercial use, leaving the silicon behind.

source: cleanenergo