TEHRAN (ANA)- Iranian researchers at Sahand University of Technology in Tabriz developed a simple, low-cost and scalable method for the synthesis of perovskite solar cell light-absorbing layers, considering the country’s serious need to have access to low-cost and renewable energy sources.
“Perovskite solar cells are the latest generation of solar cells that have surpassed previous technologies due to rapid progress in efficiency and performance,” said Farzad Nasirpouri, a professor of the Department of Materials Engineering of Sahand University of Technology.
“Like any other technology, one of the most important challenges in developing such cells is the ability to produce them on a large and industrial scale. To this end, a simple and scalable chemical bath method was developed in our project for the synthesis of perovskite layer. The solar cell made by this method showed an efficiency of 11.35% under standard radiation conditions,” he added.
"The results of this project showed the possibility of preparing perovskite by the chemical bath method, which on the one hand eliminates the need to use hazardous solvents, and on the other hand, because it is simpler and less expensive, it is possible to generalize to large dimensions,” Nasirpouri said.
Noting that the project has been implemented on a laboratory scale, he said, “Due to the fact that the immersion method in a chemical bath (Chemical Bath Deposition) can easily be converted to an industrial scale and also in the proposed process, one of the toxic solvents to prepare the perovskite layer has been omitted, it can be used for industrial production after going through the necessary steps.”
"If these cells are commercialized, the results can be used in the green process of making light absorbing organometallic hybrid layer for perovskite solar cells,” Nasirpouri underlined.
He added that results of the research have been published in an article in the prestigious Chemical Engineering journal.
Perovskite solar cells are thin-film devices built with layers of materials, either printed or coated from liquid inks or vacuum-deposited.
Perovskite solar cells have shown remarkable progress in recent years with rapid increases in efficiency, from reports of about 3% in 2009 to over 25% today.
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Source: ANA