Recently a team of University researchers has reported having solved a significant fabrication regarding perovskite cells which are the potential challengers as far as silicon-based solar cells are concerned. These newly developed crystalline structures have the potential to exhibit enormous promise because they can absorb almost all the wavelengths of the light. It is learned that Perovskite solar cells already adequately marketed on a small scale. But the vital feature concerning the recent improvements in their power conversion efficiency (PCE) is proving to be the primary interest concern because of the low-cost alternatives for solar panels. 

A cover article was brought up online as on June 28, 2018, within the Nanoscale journal which is a publication of the Royal Society of Chemistry. In such an article, the research team has revealed a new and proper means of applying a critical component to the perovskite cells to reduce any such major challenge that comes in the way of fabrication. The researchers went through the process of using the critical electron transport layer (ETL) within the perovskite photovoltaic cells in a brand new process. Such a process is known as the spray coating whose primary function is to imbue the ETL with a high level of conductivity and also an active interface with the neighbors, which is the perovskite layer. 

As per the sources, the research activity is done under the leadership of Andre D. Taylor who is n associate professor in the NYU Tandon School of Engineering’s Chemical as well as Bimolecular Engineering Department along with Yifan Zheng who is the first author of this paper and also Peking University researcher. Even there are co-authors for this research who belong from the University of Electronic Science and the Technology of China, Johns Hopkins University as well as Yale University.     

The researchers have further conveyed that most of the solar cells are “sandwiches” of materials which are placed in such a way that when the light touches the cell’s surface, it energizes the negatively charged material and establishes an electric current in the way of pushing the electrons towards the latticework of positively charges “holes”. Within the perovskite solar cells, there is a simple planar orientation called p-i-n whereby the perovskite involves the light-trapping intrinsic layer in between the negatively charged ETL and a positively charged Hole Transport Layer (HTL).